Molekule Air Mini, Molekule Air Mini +

K202339 · Molekule, Inc. · FRA · Feb 23, 2021 · General Hospital

Device Facts

• Record ID: K202339
• Device Name: Molekule Air Mini, Molekule Air Mini +
• Applicant: Molekule, Inc.
• Product Code: FRA · General Hospital
• Decision Date: Feb 23, 2021
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 880.6500
• Device Class: Class 2
• Attributes: Therapeutic

Indications for Use

The Molekule Air Mini air purifier is a device intended for medical purposes that is used to capture 95% of particulate matter and destroy bacteria and viruses by exposure to ultraviolet radiation. The Molekule Air Mini + air purifier is a device intended for medical purposes that is used to capture 95% of particulate matter and destroy bacteria and viruses by exposure to ultraviolet radiation when operated in manual mode at fan speed 3 or higher.

Device Story

Standalone air purifiers; use photo electrochemical oxidation (PECO) technology to destroy bacteria/viruses. Input: ambient air drawn by centrifugal fan. Process: air passes through catalytic filter coated with photocatalyst; UV-A LEDs (320-400 nm) irradiate filter surface to generate hydroxyl radicals; radicals oxidize captured microbiological contaminants. Output: purified air. Operated by healthcare professionals or lay users via capacitive touch button or mobile app. Air Mini + includes particulate sensor and Auto Protect Mode adjusting fan speed based on detected levels. Benefits: reduction of airborne bioaerosols and particulate matter in clinical/home environments.

Clinical Evidence

No clinical data. Substantial equivalence supported by bench testing: MS2 bacteriophage log reduction (5.09 ± 0.42 at 120 mins) and ASHRAE 52.2 mechanical filtration efficiency (≥95% for 0.3-1.0 micron particles).

Technological Characteristics

Materials: proprietary multi-layer filter media with photocatalyst coating and metal wire mesh (MERV16). Sensing: centrifugal fan, UV-A LED array (320-400 nm, 6.8W total power). Connectivity: NFC for filter authentication, 2.4 GHz WLAN. Standards: UL 507, IEC 60601-1-2, FCC Part 15 C. Form factor: freestanding, 12.04 in height, 8.27 in diameter.

Indications for Use

Indicated for use in medical facilities and home healthcare settings to capture 95% of particulate matter and destroy bacteria and viruses via UV-A exposure. Air Mini + includes an auto-mode based on particulate sensing.

Regulatory Classification

Identification

A medical ultraviolet air purifier is a device intended for medical purposes that is used to destroy bacteria in the air by exposure to ultraviolet radiation.

Predicate Devices

• Molekule Air Pro RX Air Purifier (K200500)

Submission Summary (Full Text)

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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo is in blue and includes the letters "FDA" followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in a stacked format.

February 23, 2021

Molekule, Inc. % Adrienne Lenz Senior Medical Device Regulation Expert Hyman, Phelps & McNamara, P.C. 700 Thirteenth Street, N.W., Suite 1200 Washington, District of Columbia 20005

Re: K202339

Trade/Device Name: Molekule Air Mini, Molekule Air Mini + Regulation Number: 21 CFR 880.6500 Regulation Name: Medical Ultraviolet Air Purifier Regulatory Class: Class II Product Code: FRA Dated: August 14, 2020 Received: August 17, 2020

Dear Adrienne Lenz:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal

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statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

for Clarence W. Murray, III, Ph.D. Acting Assistant Director DHT4B: Division of Infection Control and Plastic Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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### Indications for Use

510(k) Number (if known)

K202339

Device Name

Molekule Air Mini

#### Indications for Use (Describe)

The Molekule Air Mini air purifier is a device intended for medical purposes that is used to capture 95% of particulate matter and destroy bacteria and viruses by exposure to ultraviolet radiation.

The Molekule Air Mini air purifier has been demonstrated to destroy the following MS2 bacteriophage bioaerosol entrained on the filter of the subject device under the following exposure/working conditions:

| Test Item | | Test Result |
|--------------------|-------------------------------------|---------------------------------------------------------------------------------------------------------------------------------|
| Virus | MS2<br>bacteriophage | Average maximum log reduction /<br>entrainment time (hours) at Fan Speed 5.<br>Room temperature test.<br>5.09 ± 0.42 / 120 mins |
| Particulate matter | 0.3 to 1.0 micron<br>size particles | Single Pass Mechanical Filtration Efficiency<br>95% or greater according to ASHRAE 52.2 |

Type of Use (Select one or both, as applicable)

| Prescription Use (Part 21 CFR 801 Subpart D)

[X] Over-The-Counter Use (21 CFR 801 Subpart C)

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### Indications for Use

510(k) Number (if known)

K202339

Device Name Molekule Air Mini +

#### Indications for Use (Describe)

The Molekule Air Mini + air purifier is a device intended for medical purposes that is used to capture 95% of particulate matter and destroy bacteria and viruses by exposure to ultraviolet radiation when operated in manual mode at fan speed 3 or higher.

The Molekule Air Mini + air purifier has been demonstrated to destroy the following MS2 bacteriophage bioaerosol entrained on the filter of the subject device under the following exposure/working conditions:

| Test Item | Test Result | |
|--------------------|----------------------------------|-------------------------------------------------------------------------------------------------|
| Virus | MS2 bacteriophage | Average maximum log reduction / entrainment time (hours) at Fan Speed 5. Room temperature test. |
| | | 5.09 ± 0.42 / 120 mins |
| Particulate matter | 0.3 to 1.0 micron size particles | Single Pass Mechanical Filtration Efficiency 95% or greater according to ASHRAE 52.2 |

Type of Use (Select one or both, as applicable)

Prescription Use (Part 21 CFR 801 Subpart D)

[X] Over-The-Counter Use (21 CFR 801 Subpart C)

#### CONTINUE ON A SEPARATE PAGE IF NEEDED.

This section applies only to requirements of the Paperwork Reduction Act of 1995.

#### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.*

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:

> Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

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### 510(k) Summary

### K202339

In accordance with 21 C.F.R. § 807.92 the following summary of information is provided:

DATE: February 22, 2021

### SUBMITTER:

Molekule, Inc. 1301 Folsom St San Francisco, CA 94103 T 855-999-9069

### PRIMARY CONTACT PERSON:

Adrienne R. Lenz Senior Medical Device Regulation Expert Hyman, Phelps, & McNamara, P.C. T 202-737-4292

### SECONDARY CONTACT PERSON:

Frank Bianco FDA Compliance Molekule, Inc. T 925-404-7724

### DEVICE:

TRADE NAME: Molekule Air Mini, Molekule Air Mini + COMMON/USUAL NAME: Air Purifier CLASSIFICATION NAMES: Purifier, Air, Ultraviolet, Medical REVIEW PANEL: General Hospital PRODUCT CODE: FRA

### PREDICATE DEVICE(S):

Molekule Air Pro RX Air Purifier, K200500

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This predicate has not been subject to a design-related recall.

# DEVICE DESCRIPTION:

The Molekule Air Mini and Air Mini + air purifiers are ultraviolet air purifiers that employ a photo electrochemical oxidation (PECO) ultraviolet air purification technology that destroys bacteria and viruses in air. The Molekule Air Mini and Air Mini + may be used in medical facilities and in the home. The Molekule Air Mini and Air Mini + air purifiers includes a low energy ultraviolet light (UV-A 320 - 400 nm) and a catalytic filter. They are standalone devices that can be controlled via a button on the device and may also be controlled using the Molekule Android or iOS application.

PECO is an air purification technology that oxidizes bacteria and viruses. PECO works by shining UV-A light on the surface of the catalytic filter to initiate a chemical reaction that generates hydroxyl radicals. These radicals combine with microbiological contaminants, such as bacteria and viruses, that are captured on the filter. Once combined, a chemical reaction takes place destroying the contaminants.

The Molekule Air Mini and Air Mini + are freestanding devices. A fan within the unit draws air up from vents in the bottom of the unit, up through the PECO filter (where it is exposed to UV-A light), and out through the vents on the top of the unit.

The Molekule Air Mini and Air Mini + user interface includes a capacitive touch button and LED indicators on the top of the device. Power (on/off) and fan speed are controlled via the capacitive touch button. Integrated WLAN provides a secondary means for controlling the device from the Molekule Android or iOS application.

Air Mini + additionally includes a particulate matter sensor, particulate matter indicator, and Auto Protect Mode, which controls fan speed based on particulate levels detected in the use environment.

# INTENDED USE:

# Molekule Air Mini

The Molekule Air Mini air purifier is a device intended for medical purposes that is used to capture 95% of particulate matter and destroy bacteria and viruses by exposure to ultraviolet radiation.

The Molekule Air Mini air purifier has been demonstrated to destroy the following MS2 bacteriophage bioaerosol entrained on the filter of the subject device under the following exposure/working conditions:

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| Test Item | Test Result |
|-----------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------|
| Virus<br>MS2<br>bacteriophage | Average maximum log reduction /<br>entrainment time (hours) at Fan Speed 5.<br>Room temperature test.<br>$5.09 \pm 0.42$ / 120 mins |
| Particulate matter<br>0.3 to 1.0 micron<br>size particles | Single Pass Mechanical Filtration Efficiency<br>95% or greater according to ASHRAE 52.2 |

## Molekule Air Mini +

The Molekule Air Mini + air purifier is a device intended for medical purposes that is used to capture 95% of particulate matter and destroy bacteria and viruses by exposure to ultraviolet radiation when operated in manual mode at fan speed 3 or higher.

The Molekule Air Mini + air purifier has been demonstrated to destroy the following MS2 bacteriophage bioaerosol entrained on the filter of the subject device under the following exposure/working conditions:

| Test Item | Test Result |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------|
| Virus | Average maximum log reduction / entrainment time (hours) at Fan Speed 5. Room temperature test.<br>5.09 ± 0.42 / 120 mins |
| Particulate matter | Single Pass Mechanical Filtration Efficiency<br>0.3 to 1.0 micron size particles<br>95% or greater according to ASHRAE 52.2 |

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## CHARACTERISTIC COMPARISON:

The following table summarizes the similarities and differences between the subject and predicate devices.

| | Molekule Air Mini<br>air purifier<br>(K202339) | Molekule Air Mini +<br>air purifier<br>(K202339) | Predicate Device<br>Molekule Air Pro RX<br>air purifier<br>(K200500) |
|-----------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) Holder | Molekule | Molekule | Molekule |
| Device Type | Medical Ultraviolet Air<br>purifier | Medical Ultraviolet Air<br>purifier | Medical Ultraviolet Air<br>purifier |
| Product Code | FRA | FRA | FRA |
| Classification<br>Regulation | 21 C.F.R. § 880.6500 | 21 C.F.R. § 880.6500 | 21 C.F.R. § 880.6500 |
| Class | II | II | II |
| Rx/OTC | OTC | OTC | OTC |
| User | Healthcare Professional<br>Lay User | Healthcare Professional<br>Lay User | Healthcare Professional |
| | Molekule Air Mini<br>air purifier<br>(K202339) | Molekule Air Mini +<br>air purifier<br>(K202339) | Predicate Device<br>Molekule Air Pro RX<br>air purifier<br>(K200500) |
| Indications for<br>Use | The Molekule Air Mini<br>air purifier is a device<br>intended for medical<br>purposes that are used to<br>capture 95% of<br>particulate matter and<br>destroy bacteria and<br>viruses by exposure to<br>ultraviolet radiation.<br>The Molekule Air Mini<br>air purifier has been<br>demonstrated to destroy<br>the following MS2<br>bacteriophage bioaerosol<br>entrained on the filter of<br>the subject device under<br>the following exposure<br>conditions:<br>Average maximum log<br>reduction / entrainment<br>time (hours) at Fan<br>Speed 5. Room<br>temperature test for MS2<br>bacteriophage virus:<br>5.09 ± 0.42 120 mins<br>Single Pass Mechanical<br>Filtration Efficiency:<br>95% or greater according<br>to ASHRAE 52.2 | The Molekule Air Mini +<br>air purifier is a device<br>intended for medical<br>purposes that are used to<br>capture 95% of<br>particulate matter and<br>destroy bacteria and<br>viruses in the air by<br>exposure to ultraviolet<br>radiation when operated<br>in manual mode at fan<br>speed 3 or higher.<br>The Molekule Air Mini +<br>air purifier has been<br>demonstrated to destroy<br>the following MS2<br>bacteriophage bioaerosol<br>entrained on the filter of<br>the subject device under<br>the following exposure<br>conditions:<br>Average maximum log<br>reduction / entrainment<br>time (hours) at Fan<br>Speed 5. Room<br>temperature test for MS2<br>bacteriophage virus:<br>5.09 ± 0.42 120 mins<br>Single Pass Mechanical<br>Filtration Efficiency:<br>95% or greater according<br>to ASHRAE 52.2 | The Molekule Air Pro RX<br>air purifier is a device<br>intended for medical<br>purposes that is used to<br>destroy bacteria and<br>viruses in the air by<br>exposure to ultraviolet<br>radiation.<br>The core technology<br>components of the<br>Molekule Air Pro RX air<br>purifier have been<br>demonstrated to destroy<br>the following MS2<br>bacteriophage bioaerosol<br>entrained on the filter of<br>the subject device under<br>the following exposure<br>conditions:<br>Average Maximum log<br>reduction/exposure time<br>(hours)<br>Room temperature Virus,<br>MS2 bacteriophage<br>5.21/24 hours |
| | Molekule Air Mini<br>air purifier<br>(K202339) | Molekule Air Mini +<br>air purifier<br>(K202339) | Predicate Device<br>Molekule Air Pro RX<br>air purifier<br>(K200500) |
| Environment<br>of Use | Hospital and other<br>healthcare setting.<br>Home healthcare. | Hospital and other<br>healthcare setting.<br>Home healthcare. | Hospital, including<br>general, surgery, critical<br>care, and radiology.<br>Inpatient and general<br>nursing facilities,<br>diagnostic and radiology<br>rooms. |
| User Control | Touch panel with 5<br>manual fan settings.<br>Application controls<br>mimic device touch<br>panel | Touch panel with 5<br>manual fan settings and<br>one auto protect setting.<br>Application controls<br>mimic device touch panel | One knob controls the<br>four-speed fan setting<br>One button turns the unit<br>on and off. |
| Software | Basic Firmware and<br>App, used to turn the unit<br>on, off, and change fan<br>speed. | Basic Firmware and App,<br>used to turn the unit on,<br>off, and change fan<br>speed. | Basic Firmware, used to<br>turn the unit on, off, and<br>change fan speed. |
| Mechanism of<br>Action | UV light of sufficient<br>energy (UV-A) activates<br>photocatalyst that<br>destroys microorganisms<br>entrained on the filter<br>through a photochemical<br>reaction. | UV light of sufficient<br>energy (UV-A) activates<br>photocatalyst that<br>destroys microorganisms<br>entrained on the filter<br>through a photochemical<br>reaction. | UV light of sufficient<br>energy (UV-A) activates<br>photocatalyst that destroys<br>microorganisms entrained<br>on the filter through a<br>photochemical reaction. |
| Installation | Free standing | Free standing | Free standing |
| Pre-Filter(s) | ● Not applicable | ● Not applicable | ● Synthetic Media for<br>mechanical filtration<br>upstream of the PECO<br>filter.<br>● Dimensions: 20 in x<br>20 in x 4 in<br>● Pleats per inch: 1.5<br>● Total Filter surface<br>area: 4800 in² |
| | Molekule Air Mini<br>air purifier<br>(K202339) | Molekule Air Mini +<br>air purifier<br>(K202339) | Predicate Device<br>Molekule Air Pro RX<br>air purifier<br>(K200500) |
| Catalytic Filter | Proprietary multi-layer filter media Dimensions: 6.18 in (diameter), 6.55 in Height. Pleats per inch: 3 pleats per inch of outer circumference Total Filter surface area: 616 in2 Filter coated with proprietary photocatalyst and a metal wire mesh MERV16 | Proprietary multi-layer filter media Dimensions: 6.18 in (diameter), 6.55 in Height. Pleats per inch: 3 pleats per inch of outer circumference Total Filter surface area: 616 in2 Filter coated with proprietary photocatalyst and a metal wire mesh MERV16 | Proprietary multi-layer filter media Dimensions: 20 in x 20 in x 4 in Pleats per inch: 1.5 Total Filter surface area: 4800 in2 Filter coated with proprietary photocatalyst and a metal wire mesh MERV16 |
| Photocatalyst | Proprietary catalyst (same as predicate) | Proprietary catalyst (same as predicate) | Proprietary catalyst |
| | Molekule Air Mini<br>air purifier<br>(K202339) | Molekule Air Mini +<br>air purifier<br>(K202339) | Predicate Device<br>Molekule Air Pro RX<br>air purifier<br>(K200500) |
| Light Source | UV Light Source: LED Wavelength: 320-400 nm Total of 12 UV LEDs split amongst 4 PCBs (3 LEDs per PCB) Total UV Power: 6.8 W Filter Irradiance (Minimum): 20 W/m² | UV Light Source: LED Wavelength: 320-400 nm Total of 12 UV LEDs split amongst 4 PCBs (3 LEDs per PCB) Total UV Power: 6.8W Filter Irradiance (Minimum): 20 W/m² | UV Light Source: LED Wavelength: 320-400 nm Power per Lamp/String: 11.4 W Number of Lamps/String: 6 Total UV Power: 68.4 W Filter Irradiance (Minimum): 30 W/m² |
| Air Source | Centrifugal Fan | Centrifugal Fan | Centrifugal Fan |
| Flow Control | 5 speeds (low-high)<br>Provide 9-86 CFM | 5 speeds (low-high)<br>Provide 9-86 CFM | Four speeds (low, medium, high, boost) provide 300-800 CFM flow. |
| Device Air<br>Changes Per<br>Hour (ACH) | 2.43 device air changes per hour on setting 5, roughly 86 CFM, in a 250 ft² room | 2.43 device air changes per hour on setting 5, roughly 86 CFM, in a 250 ft² room | 6-9 ACH when used in room with volume of 4000 cubic feet (a typical Operating Room Volume) with flowrates of 450-650 CFM at settings 2 and 3. |
| Particulate<br>Sensor | Not applicable | Optical Particle Sensor | Not applicable |
| | Molekule Air Mini<br>air purifier<br>(K202339) | Molekule Air Mini +<br>air purifier<br>(K202339) | Predicate Device<br>Molekule Air Pro RX<br>air purifier<br>(K200500) |
| UV Light<br>Exposure<br>Safety Features | If a validated, serialized,<br>Molekule filter is<br>missing, the unit will not<br>operate. The unit<br>authenticates the filter<br>via NFC, before and<br>during operation.<br>The purpose of this<br>system is to protect the<br>user from any possibility<br>of exposure to direct<br>contact with UV light<br>that would occur without<br>a genuine Molekule<br>Filter being present. | If a validated, serialized,<br>Molekule filter is<br>missing, the unit will not<br>operate. The unit<br>authenticates the filter<br>via NFC, before and<br>during operation.<br>The purpose of this<br>system is to protect the<br>user from any possibility<br>of exposure to direct<br>contact with UV light<br>that would occur without<br>a genuine Molekule<br>Filter being present. | Safety switches exist in<br>the following locations:<br>PECO filter door, pre<br>filter door, PECO filter<br>compartment, and pre<br>filter compartment. If any<br>door is open or if a filter is<br>missing, the unit will not<br>operate. The purpose of<br>these switches is to protect<br>the user from any<br>possibility of exposure to<br>direct contact with UV<br>light. Safety feature<br>confirmed by UL 507. |
| Fan Exposure<br>Safety Features | Vanes at outlet and<br>Honeycomb inlet of fan<br>with small enough<br>grating to block user<br>from accessing spinning<br>fan without tools. Safety<br>feature confirmed by UL<br>507. | Vanes at outlet and<br>Honeycomb inlet of fan<br>with small enough<br>grating to block user<br>from accessing spinning<br>fan without tools. Safety<br>feature confirmed by UL<br>507. | Grill at outlet and inlet of<br>fan with small enough<br>grating to block user from<br>accessing spinning fan<br>without tools. Safety<br>feature confirmed by UL<br>507. |
| Input Voltage | 120 Volt…