E. L. Foust Co., Inc.
Research And Reliability In Air Purification Since 1974

GreenPeople Seal of Approval

Air Purifiers          Water FiltersEverpure  MultiPure  Hurley          HVAC Filters:  Chemical Control  Particle Control
Home/Environment Products:  AFM    Building/Construction    ECOS   Face Masks    Vacuums    Solutions-4-You    Magick Botanical

 

Product ID: 400

Series 400 Air Purifier

Description: The Series 400 Air Purifier is the largest of our free standing air purifiers. Rated for about 1000 square feet, it uses a powerful two speed sealed bearing motor/blower to draw air into the large filter beds of HEPA and carbon. The carbon will remove chemicals and the HEPA, particles down to .3 microns in size. We offer a UV Bulb which is an effective disinfectant. It disinfects air that circulates through the system, rapidly reducing airborne bacteria, viruses and allergens reducing the probability of human infection. This bulb should be replaced annually.

- Efficient Multi-Stage Filtration including pleated pre-filters, a high efficiency HEPA filter rated 95% at 0.3 microns, and a specially designed media cell to control chemical pollution in your environment.
- Top Loaded Filter Components assure a perfect seal, unlike many purifiers when doors, bottom, or side panels must be opened to install or check filters. Those doors and panels can warp allowing air to bypass filters and escape unfiltered. Air leakage is impossible with the Foust Series 400 design.
- Powerful, Quiet Operation. Double squirrel-cage blower fan (not just a simple fan) insures proper airflow through the system. Multiple speed switch and motor allows you to adjust airflow, higher when greater levels of pollution are being introduced, lower when pollution is under control. Decibel rating on HIGH is 24 @ 3 feet, LOW is 22 @ 3 feet.
- Sturdy Diffuser Lid gently guides filtered air throughout your room eliminating the drafty effect of one-directional airflow.
- Attractive, solidly constructed steel cabinet has a pebbled, odorless power coat, baked enamel finish in soft cream beige, ideal for the home or office.
- Optional Stainless Steel Cabinet has a rugged exterior finish which will protect against daily scratches, nicks, and bumps which typically happen to any household or office equipment. The attractive modern look is ideal for the home or office and will remain strong for years to come.
- Optional Ultraviolet Light Bulb produces no ozone and is effective in killing bacteria and microorganisms in the air. It produces ultraviolet light at the specific wavelength of 254nm (nanometers) which is most effective for neutralizing airborne microorganisms. This bulb should be replaced annually. The bulb may still light up after the specified time, but the wavelength changes and it becomes less effective.
- Heavy Duty Wheels allow you to easily move from one area to another.

  
Frequently Asked Questions
Weight55 pounds
Dimensions13.5" x 13.5" x 32"
Optimal Room Size1000 square feet
Electrical

High Setting: 2.25 Amps, approx. 245 watts at 115 volts
Low Setting: 1.25 Amps, approx. 190 watts at 115 volts Thermally protected
UV bulb 14 watts @ 115 volts
Power cord is 8' long

Fan Capacity(flows are with filters in place, at cubic feet per minute
High setting: 380 CFM
Low setting: 285 CFM

Some questions to think about ...

One year limited warranty on materials and workmanship. In addition, if for any reason whatsoever the original customer is dissatisfied with the product, the E.L. Foust Co. must be informed within 30 days of purchase or invoice date to approve return for a prompt refund of the purchase price excluding a 10% return charge and shipping charges.
Filter replacements caused by the normal operation of the units are not covered under this warranty policy.

(back)

Some Questions To Think About...
 
 
If you are considering spending hundreds of dollars on a high efficiency air purifier, you probably will do some serious comparison-shopping to evaluate the advantages and disadvantages of the many features that air purifiers in this price range offer. We'd like to help you compare these features and to show you how our HEPA filter and our SERIES 400 measure up. Here are some questions you will want to consider.

1. WHAT DOES "ABSOLUTE SEAL" MEAN AND WHY IS IT SO IMPORTANT? OR…DOES THE PURIFIER YOU ARE CONSIDERING HAVE DOORS?

An air purifier has an ABSOLUTE SEAL when there is no leakage through doors that are or become ill fitting over time. The pressure buildup in a unit can become quite intense forcing UNFILTERED AIR through cracks. Doors that are not sealed well or that are ill fitting provide an easy exit through openings that allow unpurified air to bypass some or all of the filters.

THE FOUST SERIES 400 HAS NO DOORS, NO LATCHES.

How does the Foust SERIES 400 achieve the absolute seal necessary to prevent bypass? By STACKING our filter components vertically, the air must pass through them. BYPASS IS IMPOSSIBLE. No doors, no latches, no warping, NO AIR BYPASS. All air entering the system leaves the system filtered. Simple!


2. DOES THE PURIFIER YOU ARE CONSIDERING HAVE TRAYS THAT SIT IN TRACKS?

If the purifier you are considering has filter trays, be sure that the tracks they slide into are tight and well sealed. If the trays do not fit snugly into these tracks, the air flowing through the unit will bypass the loose filters and exit the unit unfiltered. Further, if the trays do not fit tightly, they will rattle in their tracks resulting in noisy operation.

OUR SERIES 400 has no tracks. Our filter components are stacked vertically eliminating tracks, bypass and rattling.


3. DOES THE AIR PURIFIER CONTAIN PLASTIC PARTS OR OFFENSIVE SYNTHETICS?

If you are a chemically sensitive person, plastic or objectionable synthetics are not acceptable to you. Check for those which are difficult to see. Some units look very appealing yet may contain plastic parts and irritating adhesives which are not easily visible.

Our SERIES 400 has been designed with the chemically sensitive person in mind. Pre and post filters contain no adhesives. HEPA filters are made without glue. There is no outgassing on our HEPA at temperatures under 500 degrees! Our cabinets are finished with a specially processed, very durable powder coat finish.


4. DOES THE AIR PURIFIER WITH AN ULTRAVIOLET LIGHT CREATE OZONE?


If you purchase an E.L. FOUST air purifier with a UV bulb, NO ozone is created by the air purifier.

5. WHAT IS THE TRUE CAPACITY OF THE PURIFIER'S MOTOR?

Don't be impressed by outlandish claims of how many thousands of cubic feet of air per hour or per day are moved by an air purifier. Such claims are quite meaningless in themselves because they represent only one variable among many that determine airflow. True output can only be determined by figuring the relationship between motor CFM (cubic feet per minute) and resistance (the number and density of filters through which the air must flow). This number is, by necessity, always quite a bit lower than the high volumes advertised and indicates the ability of the entire system to operate efficiently.


6. IS FAN DESIGN IMPORTANT?

Yes! Small blade-type fans are just not able to push air through several filter components. The Foust DOUBLE SQUIRREL CAGE blower fan provides the power needed to push air through our intelligently designed series of filters. Even our economical # 160 series purifiers for homes, offices, and cars use squirrel cage fans for greater efficiency.


7. WILL MY PURIFIER HAVE GOOD AIRFLOW?

Keep in mind that purifiers that are loaded with filter components suffer in air output if they do not have a powerful enough motor. If you inspect a purifier which has been advertised as having several filter components but does not produce good airflow, then the motor is not powerful enough to push through all those components and invites the bypass problem we discussed earlier as well as backwash (where air builds up on the motor compartment and exits back through the intake area. This creates what's called a roll effect where air never reached the filter beds).

Our motor-blower system is designed to provide OPTIMUM AIRFLOW THROUGH THE FILTER BEDS FOR THE MOST EFFICIENT AIR FLOW AND PURIFICATION.


8. HOW DO I EVALUATE CLAIMS MADE ABOUT THE EFFICIENCY OF THE PURIFIER'S HEPA FILTER?

Ask this question: Is the quoted efficiency of the HEPA based on loose material purchased by the company that they themselves install in a frame and glue in place? Or is the quoted efficiency based on a HEPA already completed and tested as a unit? If the company has done their own installation from loose HEPA material you must ask if that completed product has been tested once assembled. Insist that the purifier you purchase contain a HEPA filter that has been tested after assembly.

THE FOUST SERIES 400 HEPA FILTER IS TESTED AFTER ASSEMBLY AS A COMPLETE UNIT AT THE FACTORY UNDER THE HIGHEST STANDARDS.


9. WHAT IS THE REFUND POLICY?

The E.L. FOUST COMPANY offers a 90% refund of purchase price within 30 days for whatever reason-no arguments, no hairsplitting, no hassle. Just let us know of your intention to return your purifier, and once we receive it in good condition, we will refund your money within 7-10 days.

 

Product ID: 160R2

Room Air Purifier

Description: Unit is designed and tested for an area up to 500 sq. ft.. See test results on our Education page for chemical reduction, (including Ozone & Formaldehyde) ability. The state of the art Technostat HEPA filter used in the 160 Series does not outgas chemicals up to 200 degrees F; and is rated at the highest efficiency in the industry. We recommend customers use our STD Mix carbon for best results for chemical, fume, & odor control, however, custom mixes are available. If you are simply looking for particle control, you may choose to purchase our carbon-less unit. With our Technostat HEPA filter added to this carbon-less unit, you will receive superb particle control. You may also add the Alpha-Stat particle filter as a pre-filter. Unit comes ready to operate and cartridge replacement is simple. Cartridges are recyclable and we encourage our customers to do so, by offering a refund if they are returned per instructions at time of purchase.
Quiet operation, can be used in homes,bedrooms, classrooms, offices, etc...
Decibel rating is 18 @ 3 feet.
FILTERDOWN® Particulate Control Filter

Filterdown traps particulates down to 0.5 micron - This includes virtually all dust, pollen, and molds as well as a full range of other pollution particles. Rated at 85% efficiency @ 1.0 micron. Your air purifier will be equiped with this media, unless you specify the optional Technostat HEPA. No glues are used to install this filter.

Optional Technostat HEPA Filter

The 160R2 uses a state of the art HEPA filter that removes particles with an efficiency of 99.738% at 0.1 Micron. This HEPA filter is unique in that it will not outgas at temperatures under 200 degrees (F). No glues are used to install this filter. Particles removed by the HEPA filter include dust, molds, mites, smoke, viruses, and bacteria as well as many other particles in the air.

  
Frequently Asked Questions
Weight17 pounds (units with carbon)
Dimensions10" x 22"H
Optimal Room Size20' x 25'
Power (Volts/Amps)

115VAC/.65 amps, 45 watts  Thermally protected 
Power cord is 8' long

Fan Capacity(flows are with filters in place, at cubic feet per minute
160 CFM

Absorptive Surface
Area (sq. ft.)

18,500,000

One year limited warranty on materials and workmanship. In addition, if for any reason whatsoever the original customer is dissatisfied with the product, the E.L. Foust Co. must be informed within 30 days of purchase or invoice date to approve return for a prompt refund of the purchase price excluding a 10% return charge and shipping charges.
Filter replacements caused by the normal operation of the units are not covered under this warranty policy.

(back)

Product ID: 160AN

Auto Air Purifier

Description: Unit is designed and tested for an area up to 1200 cubic feet. See test results for chemical reduction (including Ozone and Formaldehyde) ability. The state of the art HEPA filter used in the 160 Series does not outgas chemicals and is rated at the highest efficiency of the industry. We recommend customers use our STD Mix carbon for best results, however, custom mixes are available. Unit comes ready to operate with a 93" power cord, and cartridge replacement is simple. Cartridges are recyclable, (in 48 states),and we encourage our customers to do so, by offering refunds if returned per our instructions.
Optional 110 volt AC to 12 volt DC electrical converter allows this unit to be used in the home also.
Quiet operation, decibel rating is 18 @ 3 feet.
 

FILTERDOWN® Particulate Control Filter

Filterdown traps particulates down to 0.5 micron - This includes virtually all dust, pollen and molds as well as a full range of smaller pollution particles. Rated at 85% efficiency @ 1.0 microns. Your air purifier will be equipped with this filter, unless you specify the optional Technostat HEPA. No glues are used to install this media.

Optional Technostat HEPA Filter

The 160AN uses a state of the art HEPA filter that removes particles with an efficiency rated at 99.738% @ 0.1 Micron. This HEPA filter is unique in that it will not outgas at temperatures under 200 degrees (F). Particles removed by the HEPA filter include dust, molds, mites, bacteria, and even many viruses; as well as many other particles in the air. No glues are used to install this media.

Report on harmful chemicals in your car

  
Frequently Asked Questions
Weight9 pounds (units with carbon)
Dimensions9"H x 15"L
Power (Volts/Amps)

2.0Amps / 12Volt DC Thermally protected
Power cord is 7.5' long 

Fan Capacity(flows are with filters in place, at cubic feet per minute)
60 CFM

Absorptive Surface
Area (sq. ft.)

7,000,000

One year limited warranty on materials and workmanship. In addition, if for any reason whatsoever the original customer is dissatisfied with the product, the E.L. Foust Co. must be informed within 30 days of purchase or invoice date to approve return for a prompt refund of the purchase price excluding a 10% return charge and shipping charges.
Filter replacements caused by the normal operation of the units are not covered under this warranty policy.

(back)

Product ID: 160DT

Desktop Air Purifier

Description: Unit is designed and tested for an area up to 180 sq. ft.. See test results for chemical reduction (including Ozone and Formaldehyde) ability. The state of the art Technostat HEPA filter used in the 160 Series does not outgas chemicals and is rated at the highest efficiency of the industry. We recommend customers use our STD Mix carbon for best results, however, custom mixes are available. If you are simply looking for particle control, you may choose to purchase our carbon-less unit. In addition, with our Technostat HEPA filter added to this carbon-less unit, you will recieve superb particle control. You may also add the Alpha-Stat pre-filter for extra particle control. Unit comes ready to operate and cartridge replacement is simple. Cartridges are recyclable, (in the 48 states), and we encourage our customers to do so by offering refunds when returned per our instructions.
Quiet operation, can be used in homes, bedrooms,classrooms,offices, etc...
Decibel rating is 16 @ 3 feet.

FILTERDOWN® Particulate Control Filter

Filterdown traps particulates down to 0.5 micron - This includes virtually all dust, pollen and molds as well as a full range of smaller pollution particles. Rated at 85% efficiency @ 1.0 micron. Your purifier will come equipped with this media, unless you specify the optional HEPA filter. No glues are used to install this media.

Optional Technostat HEPA Filter

The 160DT uses a state of the art HEPA filter that removes particles with an efficiency of 99.738% at 0.1 Micron. This HEPA filter is unique in that it will not outgas at temperatures under 200 degrees (F). Particles removed by the HEPA filter include dust, molds, mites, viruses, and even bacteria as well as many other particles in the air. No glues are used to install this media.

  
Frequently Asked Questions
Weight10 pounds (units with carbon)
Dimensions7" x 17" H
Power (Volts/Amps)

115VAC / 0.35Amps, 29 watts, Thermally protected 
Power cord is 8' long

Fan Capacity(flows are with filters in place, at cubic feet per minute)
60 CFM

Absorptive Surface
Area (sq. ft.)

7,000,000
Optimal Room Size 18' x 10'x 8' high

One year limited warranty on materials and workmanship. In addition, if for any reason whatsoever the original customer is dissatisfied with the product, the E.L. Foust Co. must be informed within 30 days of purchase or invoice date to approve return for a prompt refund of the purchase price excluding a 10% return charge and shipping charges.
Filter replacements caused by the normal operation of the units are not covered under this warranty policy.

(back)