All Models	Buy Now	Buy Now	Buy Now	Buy Now
Room Coverage (based on 2 air changes per hour)	up to 815 sq. ft.	up to 700 sq. ft.	up to 780 sq. ft.	up to 600 sq. ft.
Dimension (inches)	20H x 21.4W x 7D	20H x 21.4W x 7D	22.5H x 18W x 9D	22.5H x 18W x 9D
Warranty	5 Years	5 Years	5 Years	5 Years
Price	$549.95	$459.95	$399.95	$329.95
True HEPA Filtration	Yes	Yes	Yes	Yes
Air Purification Stages	1 - Pre Filter 2 - Medium Filter 3 - HEPA Filter 4 - Customized Filter 5 - Charcoal Filter 6 - Negative Ions	1 - Pre Filter 2 - Medium Filter 3 - HEPA Filter 4 - Customized Filter 5 - Charcoal Filter 6 - Negative Ions	1 - Pre Filter 2 - HEPA Filter 3 - Charcoal Filter 4 - Negative Ions	1 - Pre Filter 2 - HEPA Filter 3 - Charcoal Filter 4 - Negative Ions
Ozone Emissions	Zero	Zero	Zero	Zero
CADR	208 Pollen 200 Dust 193 Smoke	201 Pollen 200 Dust 193 Smoke	217 Pollen 197 Dust 188 Smoke	163 Pollen 145 Dust 144 Smoke
Air Flow (Cubic Feet per minute)	Speed 5 - 218 CFM Speed 4 - 159 CFM Speed 3 - 112 CFM Speed 2 - 80 CFM Speed 1 - 58 CFM	5 - 187 CFM 4 - 140 CFM 3 - 97 CFM 2 - 64 CFM 1 - 47 CFM	5 - 208 CFM 4 - 170 CFM 3 - 131 CFM 2 - 85 CFM 1 - 39 CFM	5 - 159 CFM 4 - 139 CFM 3 - 95 CFM 2 - 60 CFM 1 - 39 CFM
Noise Level (Decibels)	1 - 25.6 dBA 2 - 31.1 dBA 3 - 37.4 dBA 4 - 44.5 dBA 5 - 51.3 dBA	1 - 20.8 dBA 2 - 24.6 dBA 3 - 31.3 dBA 4 - 39.2 dBA 5 - 45.6 dBA	1 - 19.1 dBA ; 2 - 30.6 dBA 3 - 39.7 dBA 4 - 44.8 dBA 5 - 49.1 dBA	1 - 18.4 dBA 2 - 25.9 dBA 3 - 34.2 dBA 4 - 39.9 dBA 5 - 45.0 dBA
Filter Life Span	$75	$75	$37	$37
Power Consumption:	8 to 58 watts (Energy Star)	8 to 47 watts (Energy Star)	7 to 67 watts	7 to 33 watts
Colors Available	White Black	White	Chrome Silver Pearl White Lime Green Metallic Blue	Chrome Silver Pearl White Lime Green Metallic Blue
Stand Alone / Wall Mountable	Stand Alone / Wall Mountable	Stand Alone / Wall Mountable	Stand Alone	Stand Alone
Ultra Quiet	Yes	Yes	Yes	Yes
Air Quality Monitoring	Yes	Yes	Yes	Yes
Remote Control	Yes	Yes	Yes	Yes
Strong Deodorization	Yes	Yes	Yes	Yes
Weight	19.4 lbs.	19.4 lbs.	17 lbs	17 lbs

*BioGS BCRF Special Edition has same technical specification as BioGS SPA-421A.