(A) Yes, but only the 5-micro pre-filter. Ultra-Sun recommends simply vacuuming off the excess material collected on the front of the green pre-filter approximately every six months. The second stage hepa filter cannot be cleaned and both, filters must be replaced when the control panel indicates replacement.
(Q) My control panel indicates the ultraviolet lamp must be replaced, but I can see it operating. Is it absolutely necessary to replace the lamp?
(A) Yes, even though the ultraviolet lamp is operating it has diminished ultraviolet output. To keep the system killing germs and bacteria effectively, the ultraviolet lamp must be replaced once a year or the equivalent elapsed time of one year.
(Q) I have some confusion regarding how to set the air purifier for the correct room size.
(A) If you have purchased the SP-20 air purifier because you seriously suffer allergic reactions from particulate matter (pollen, dust, dust mites, animal dander, etc.) or air borne chemicals (pesticides, herbicides, cleaning solutions, etc.) use the "heavy Duty" chart. If you purchase the unit because the outdoor environment in the area you live in is unhealthy from time to time, or you suffer mild allergies occasionally, use the light duty chart. To obtain the room size the purifier is to serve multiply the length by width, and match the sum to the closest square feet listed on the chart for your particular needs.
| Heavy Duty | Light Duty | |||||
| People with Sever Respiratory Problems | Average home | |||||
| Super Mode | SQ. FT |
SQ. METERS |
Super Mode | SQ. FT |
SQ. METERS |
|
| Extra Large | 660 |
61 |
Extra Large | 1980 |
183 |
|
| Auto Mode | SQ. FT |
SQ. METERS |
Auto Mode | SQ. FT |
SQ. METERS |
|
| Extra Large | 565 |
53 |
Extra Large | 1695 |
159 |
|
| Large | 485 |
45 |
Large | 1455 |
135 |
|
| Medium | 400 |
37 |
Medium | 1200 |
111 |
|
| Small | 350 |
33 |
Small | 1050 |
99 |
|
| X-Small | 300 |
28 |
X-Small | 900 |
84 |
|
(A)You will notice a slight odor exiting from the air purifier when it is very new or you have recently replace the filter package. This odor will only be present for a couple of days, and comes from accumulated moisture in the gas absorbing carbon, potassium permanganate, and zeolite layers of the filter pack.
(Q) I have removed either the top or front grill to examine my new air purifier, and now the unit will not turn on. What is wrong with the unit?
(A) Both the top and front grill have safety interlocks that will turn the unit off if removed while in operation. If either grill is not properly reinstalled the unit will not operate. Make sure the top grill is completely snapped into place and the front grill is completely secured at the bottom.
Enjoy you air purifier in good health.