#1 Home Improvement Retailer

Internet #315516663

Model #FF305

Store SKU #1005975958

Air Flex 20 in. 3- Speed Air Purifier and Room Fan

  • 3 speed fan includes filter to remove dust, smoke, and pollen
  • Weather-Shield motor and UV protection for worry-free window use
  • Durable design, ideal for workshops, bedrooms, garages, and more
  • See More Details

Frequently Bought Together

+
+
Price:

Product Overview

Box Fan with Air Purifier by Lasko, an American Company since 1906

Over a Century of Heritage

Over the last century, Lasko has grown to an international organization in portable fans and other home comfort products.

20 in. Air Purifier and Box Fan ideal for all rooms

Air Flex 20 in. 3- Speed Air Purifier and Room Fan

A premium box fan and a powerful air cleaner in one. This fan was specifically engineered to work with a standard filter to powerfully clean the air in your room while providing a cooling breeze.

Lasko standing fans, tower fans, floor fans, wall mount fans and box fans offer innovation and safety

Innovation and Safety

Every Lasko room fan, ceramic heater, and other home comfort product comes with a long history of innovation and safety.

Box fan engineered to work with a filter

Engineered to Work with a Filter to Powerfully Clean the Air

Unlike most box fans, which can overheat or break down when used with a filter, this fan was specifically designed to work with a filter to powerfully clean the air in your room while providing a cooling breeze.

The box fans included filter removes per dander, pollen, mold, smoke odors and dust

Comes with MERV10 Filter

This Air Flex fan has a 42 CADR rating when used with the included standard pleated filter. When in use with the filter, the fan helps to remove dust, smoke, and pollen from the air to keep you more comfortable at home or in your workspace.

The box fan and air purifier works with any standard 20 x 20 x 1-inch Filter

Works with Any Standard 20 x 20 x 1-inch Filter

You can customize your clean with the pleated filter that’s right for your job or room. Works with any level MERV-rated filter, available at home centers.

The box fan and air purifier is safe for window use

Safe for Window Use

This portable fan was designed to stand up to tough use with durable construction, UV color protection paint, and a Weather-Shield motor for window use.

Lasko box fan and air purifier is backed by a 2-Year Limited Warranty

2-Year Limited Warranty

This Lasko box fan and air purifier is backed by a 2-year warranty and a century of Lasko heritage.

Box fan with air purifier offers power and efficiency up to 100 WATTS

Power and Efficiency

This powerful fan is energy efficient, so it uses minimal wattage for maximum cooling airflow

Box fan up to 2000 CFM

Amazing Airflow

At 2000 CFM, this box fan moves air quickly and powerfully through your space.

Lasko box fan is an ideal Size

Ideal Size, Weight

The lightweight design and built-in carry handle make it easy to move this fan around the house.

The box fan and air purifier has a Blue Plug with a 72 in. Cord

Safety and Peace of Mind

Thanks to a 72 in. cord and the Blue Plug safety fuse technology your fan can be safely placed almost anywhere indoors.

Box fan and air purifier by Lasko for all rooms in your home

For All Home Spaces

Great for bedrooms, living rooms, home offices, or anywhere you need some additional airflow.

The Air Flex Air Purifier and Room Fan is both a premium box fan and powerful air cleaner in one. Unlike most box fans, which can overheat or break down when used with a filter, this fan was specifically engineered to work with a filter to powerfully clean the air in your room while providing a cooling breeze. Additionally, this portable fan was designed to stand up to tough use with durable construction, UV color protection paint, and a Weather-Shield motor for worry free window use. The fan comes with a standard pleated filter that is rated to remove dust, smoke, and pollen from the air so allergy sufferers can breathe easier and feel more comfortable at home. Easily customize your clean air by using any standard 20 in. x 20 in. x 1 in. filter, available at home stores. Features steel body construction, premium fan blade for maximum air flow, ergonomic control knob, easy carry handle, and Lasko's patented safety fuse technology. Made in the USA from domestic and imported parts.
  • 2-in-1 powerful box fan and air purifier
  • Comes with MERV10/42 CADR pleated air filter
  • Customize your clean air and cooling with any 20 in. x 20 in. x 1 in. filter
  • Cleans pollen, dust, and smoke from the air
  • Premium box fan with powerful, Weather-Shield motor for worry-free window use
  • Specially-engineered motor for use with an air filter
  • Durable steel body construction and tough, UV-protected paint for tough use
  • 3-energy-efficient speeds and top-mounted ergonomic control knob
  • Ideal for workshops, bedrooms, garages, and more
  • Features the Blue Plug - Lasko's trusted safety fuse technology
  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.
Box Fan with Air Purifier by Lasko, an American Company since 1906

Over a Century of Heritage

Over the last century, Lasko has grown to an international organization in portable fans and other home comfort products.

20 in. Air Purifier and Box Fan ideal for all rooms

Air Flex 20 in. 3- Speed Air Purifier and Room Fan

A premium box fan and a powerful air cleaner in one. This fan was specifically engineered to work with a standard filter to powerfully clean the air in your room while providing a cooling breeze.

Lasko standing fans, tower fans, floor fans, wall mount fans and box fans offer innovation and safety

Innovation and Safety

Every Lasko room fan, ceramic heater, and other home comfort product comes with a long history of innovation and safety.

Box fan engineered to work with a filter

Engineered to Work with a Filter to Powerfully Clean the Air

Unlike most box fans, which can overheat or break down when used with a filter, this fan was specifically designed to work with a filter to powerfully clean the air in your room while providing a cooling breeze.

The box fans included filter removes per dander, pollen, mold, smoke odors and dust

Comes with MERV10 Filter

This Air Flex fan has a 42 CADR rating when used with the included standard pleated filter. When in use with the filter, the fan helps to remove dust, smoke, and pollen from the air to keep you more comfortable at home or in your workspace.

The box fan and air purifier works with any standard 20 x 20 x 1-inch Filter

Works with Any Standard 20 x 20 x 1-inch Filter

You can customize your clean with the pleated filter that’s right for your job or room. Works with any level MERV-rated filter, available at home centers.

The box fan and air purifier is safe for window use

Safe for Window Use

This portable fan was designed to stand up to tough use with durable construction, UV color protection paint, and a Weather-Shield motor for window use.

Lasko box fan and air purifier is backed by a 2-Year Limited Warranty

2-Year Limited Warranty

This Lasko box fan and air purifier is backed by a 2-year warranty and a century of Lasko heritage.

Box fan with air purifier offers power and efficiency up to 100 WATTS

Power and Efficiency

This powerful fan is energy efficient, so it uses minimal wattage for maximum cooling airflow

Box fan up to 2000 CFM

Amazing Airflow

At 2000 CFM, this box fan moves air quickly and powerfully through your space.

Lasko box fan is an ideal Size

Ideal Size, Weight

The lightweight design and built-in carry handle make it easy to move this fan around the house.

The box fan and air purifier has a Blue Plug with a 72 in. Cord

Safety and Peace of Mind

Thanks to a 72 in. cord and the Blue Plug safety fuse technology your fan can be safely placed almost anywhere indoors.

Box fan and air purifier by Lasko for all rooms in your home

For All Home Spaces

Great for bedrooms, living rooms, home offices, or anywhere you need some additional airflow.

Specifications

Dimensions

Fan diameter (in.)
20
Product Depth (in.)
6.36 in
Product Height (in.)
23.2 in
Product Width (in.)
21.3 in

Details

Assembly Required
Yes
CFM
2000
Color Family
White
Color/Finish
White
Control Type
Fan Control
Cord Length (ft.)
6.0
Decibel (Sound) Rating
01-Not Measured
Fan Features
Built-In Carry Handle,High Velocity,Slip-Resistant Feet
Fan Type
Box Fan
Housing Material
Plastic
Indoor/Outdoor
Indoor
Mounting Type
Standalone
Number of Fan Speeds
3
Power Options
Plug-in
Power Type
Plug-In
Product Weight (lb.)
11 lb
Returnable
90-Day
Voltage (volts)
120
Wattage (watts)
100,70

Warranty / Certifications

Certifications and Listings
ETL Listed
Manufacturer Warranty
2-year limited warranty

Questions & Answers

0Questions0Answers

Customer Reviews

  • 4.4
    out of 10 reviews
  • 89% recommend this product
Filter by:
Showing 1-10 of 10 reviews
This fan from Lakso with a built in filter is a unique design. I had been looking to make a DIY v...
This fan from Lakso with a built in filter is a unique design. I had been looking to make a DIY version to use in my wood shop to collect saw dust from sanding and was really excited to find that an actual product like this exists! I put it on the end of my work bench when sanding and the fan sucks the dust into the filter helping to keep the shop clean. Dust has been a problem I’ve been trying to tackle for some time now and this fan is a step in the right direction to achieve that goal. The filters are a standard size and very easy to replace, and the fan itself required minimum assembly. I just had to snap on the feet and the knob and it was ready to use. I don’t have to sand items too often so when I’m not using the fan to collect dust I can use it elsewhere in the shop just as a regular fan. It’s nice knowing that all the dust inside the building isn’t getting blown around even further. This is especially nice because I have allergies and this fan helps with indoor irritants. The filter does slow the fan down a little bit because it restricts the air flow but it is easy to remove if a higher fan speed is desired. All it takes is flipping the two clips and taking the filter out, super simple. I would definitely recommend this fan to anyone who is working or living in a dusty environment.
by MIKEJ
2 people found this helpful
I like the idea behind the filter in the room fan, but don't think it works well with the air flo...
I like the idea behind the filter in the room fan, but don't think it works well with the air flow. The air flow coming out is obstructed by the filter so it doesn't produce enough breeze. The size of the fan is good and has a nice handle to carry it from room to room. The filter is easy to access. The knob on the top of the fan does not stay on very well. It comes with a large instruction manual, since there is a little bit of assembly to it. Putting in the filter and locking down the tabs and attaching the plastic feet. The fan can also be used without a filter, which provides much more air flow. Lasko provides a 2-year limited warranty.
by 214Lynda
2 people found this helpful
What a great idea. This fan can hold a standard 20”x20”x1” furnace filter (one is included), thus filtering the air that moves through it. Using a filter is optional and it’s very easy to insert or remove one. This filtering box fan is ideal for my specific use, which is to blow cool air from my basement up the stairs to upstairs living space in the summer, thus reducing my need to run my AC. It filters the stale air from the basement. Otherwise, it is designs and performs like any standard box fan, with 3 speed settings, a handle on top, and steadying feet attachments.
by reb177
1 person found this helpful
What an interesting development in fan technology! My first thought about this box fan with a fi...
What an interesting development in fan technology! My first thought about this box fan with a filter were days when smoke from a forest fire a hundred miles away descended on our home town. How handy would that be? The same could be true for pollen in the air or animal dander. It works very well and, if you don't need the filter, the inside grill is safe for little fingers and this fan moves a HUGE amount of air.
by SFBill
Good general-purpose box fan. Freestanding or in a window. Good Size: 21 3/8” In W by 23 1/4”H by...
Good general-purpose box fan. Freestanding or in a window. Good Size: 21 3/8” In W by 23 1/4”H by 6 3/8” D. Made from pressed metal (outer box) and plastic (5-blade fan, vented front & back panels). It has 3 speeds (low, med high). Simple to operate. This might be a good inexpensive fan for folks who have issues with pollen, dust, pet dander etc. FEATURES I LIKE: - Easily removable/changeable air filter (standard 20X20X1 inch filter INCLUDED - MERV 10/42). - You can operate it with or without the filter. - Has 2 plastic feet/legs that supports the fan box when using it in free-standing mode. - Three speeds - Convenient carrying handle. - Light weight—about 10+ lbs - Simple to operate. - Easy to understand instructions. - Moves air at a rate of 2000 CFM - Removable back panel (the part that holds the filter) can be easily removed and hosed off when changing filters. - Made in USA FEATURE SHORTFALLS: - Somewhat loud at higher speeds (Med, High). When set to high, it’s difficult to hear someone talk in a normal tone of voice from 10-15 ft away. Decibel rating not provided. - Power consumption: about 100W
by BCinColorado
Recently we had one of our adult daughters move back home temporarily. She came back with a cat,w...
Recently we had one of our adult daughters move back home temporarily. She came back with a cat,which spends a large amount of time in her room. We wanted to get something to help with the cat fur and dust from the litter from blowing around her room. This fan/air purifier combo is a pretty affordable option. Its basically a box fan with an air filter attached to the intake side. It takes a 20x20x1 filter which are simple to find. There are 3 speeds. So far it has performed well for the purpose we needed.
by DaveB
Lasko Air Flex 20 in. 3- Speed Air Purifier and Room Fan. I have a 20 year old Lasko fan I am still using in my shop and garage when I am sanding my finished woodworking projects or just need to ventilate and cool off. This new Lasko Air Flex 20 inch is exactly what I need to replace it with. The big improvements are it now has feet to keep it from falling over and no more taping a filter to the back of my old fan box. This new one comes with one MERV 10 replaceable standard size 20” x 20” x 1” filter and a frame that easily snaps it in place. The fan was engineered to work with a filter so it won’t over heat and the “Weather-Shield” motor allows for worry free window use. When I just need to move air the filter can be instantly be removed for increased velocity. This has Lasko's patented “Blue Plug” safety fuse technology. The fuse is not replaceable. I don’t know how likely that fuse might ever blow, but the intent is to save you from being harmed or even worse. This has a 1 year limited warranty and Lasko is made in the USA since 1906 from domestic and imported parts. I found one screw in the box that belonged to a hole missing a screw in the face frame. I screwed in it and it was fine (it was not stripped)
by FBtool
I needed a fan to cool and circulate air in my small garage workshop. During the summer months it...
I needed a fan to cool and circulate air in my small garage workshop. During the summer months it gets absolutely stifling. The premise of this product seemed good, but the delivery was not quite good. First, the fan itself seems made of very cheap material (it does make it very light to carry, though). Second, the filter really impedes air flow and raises the noise level. On the whole, it is very under powered.
by JEFFREY
This fan is a game charger for people with dust allergies, I had no idea it existed until I got i...
This fan is a game charger for people with dust allergies, I had no idea it existed until I got it. I have 2 other old box fans from the same brand, LASKO and was already happy until I got this. It has a built in slot with a 20 x20 removable filter, the color is not exactly white, mine is gray on the back side and looks stylish. There are instructions included that I did not need and a one year warranty I know I will not need. It's alittle noisy, but people want a box fan next to their bed want alittle noise, so I see that as another plus. Thank you Lasko for the update to an already excellent product.
by CG
Lasko Air Flex 20 in. 3- Speed Air Purifier and Room Fan, White (OMSID: 315516663) I like that 2 ...
Lasko Air Flex 20 in. 3- Speed Air Purifier and Room Fan, White (OMSID: 315516663) I like that 2 in 1 box fan and air purifier together to plug in. it has 3 speed fan includes a standard pleated 20 x 20 x 1 filter to remove dust, smoke and pollen that is MERV10/42 CADR pleated air filter. it can use any standard 20 in. x 20 in. x 1 in. filter at home improvement stores. the top has easy dark gray knob to turn on and off, also easy readable by right side white handle. It is specially engineered for use with an air filter that will not run hot.
by VR
Showing 1-10 of 10 reviews