Allergen Plus Series® Air Purifiers

The below information can be used for our Allergen Plus Series® HEPA consoles and towers.

Console for XL Rooms – HPA300/304 | Console for Large Rooms – HPA200/204 | Console for Medium Rooms – HPA100/104
Tower – HPA175 | Compact Tower – HPA075 | Slim Tower – HPA030 | 360° Console – 50250

Filter FAQs:

How to Change the Filter

Remove the wrappers covering the filters and pre-filter. Make sure the air purifier is OFF and unplugged. Press the two hand symbols on the front grille to release it from the unit (you will hear a click) and pull the grille toward you to remove it. Grasp the sides of the filter frame near its top end and pull outward. Repeat for the second and third filter if applicable.

Place the new filters into the air purifier housing. Ensure that the removal “pull” tabs are facing outward (this will facilitate filter removal later). Place the odor-reducing pre-filter on top of the HEPA filters. Tuck the edges of the pre-filter into the tabs that are located around the edges of where the HEPA filter(s) are inserted. Some models have velcro strips on the housing where the pre-filter should be attached.

Replace the front grille by placing the tabs on the bottom of the grille into the slot(s) on the unit. Gently push the top of the grille into place by pressing on the hand symbols to secure in place. You will hear a click to know that it is in place and the grille will be flush with the unit.

When to Change the Filter

Most Honeywell Air Purifiers have a “Filter Check/Reset” indicator that alerts you when it is time to change the filter.

As a general rule:
Pre-filters should be replaced every 3 months.
HEPA filters should be changed every 12 months.

Note: These replacement intervals are intended as guidelines only. Performance of any filter media is dependent upon the concentration of contaminants going through the system. High concentrations of contaminants such as dust, pet dander, and smoke will reduce the useful performance of the filters.

How to Reset the Filter Light

After you change your filter, the “Check Filter or “Check Pre-Filter” light will remain on until it is reset. With the unit powered on, press the lighted button, and hold for approximately 2 seconds until the light turns off. The electronic filter check is now reset.

Identifying the Filter

The air purifier filters are identified by a letter. Each air purifier has labels to advise which replacement filter fits the device.

Product FAQs:

My air purifier is starting to make noise and the air output is less. What’s wrong?

The filters may be dirty. High amounts of particles can block the pores in the filter and stop the air from moving through it. Replace the filters. The HEPA Filters should be replaced every year and the Pre-Filter should be replaced every 3 months. Please note these are guidelines only and filters should be checked periodically as individual home conditions may vary. To help ensure the unit is performing properly, replace with Genuine Honeywell Replacement filters. 

How to long should I run my air purifier?

In general, the unit will be most effective when doors and windows are closed. It is recommended that you run your air purifier while you are at home to help clean the air. If desired or conditions warrant, you may run your air purifier 24 hours a day. 

Why did my air purifier suddenly turn on a higher setting?

Is the air purifier set to VOC Mode, or Auto-Set mode from the App. If it is, the unit may have sensed a higher level of VOCs or airborne particles and have adjusted the cleaning level accordingly.