Surround Air MT-8500 air purifier

Surround Air MT-8500 Quick Review

Surround Air might be in the business for 18 years, the refresh Surround Air Multi-Tech 8500 still holds its core value as an affordable 6-stage purification air purifier. Assembled with ultra-efficiency airflow distribution cater for large room size, Surround Air MT-8500 is updated with modern features like Auto mode, timer that is not available in previous models. While Surround Air might not be the most known household brand, compare to its air flow delivery rate, coverage, noise level and power consumption, how well with Surround Air Multi-Tech 8500 (MT-8500) fair against its competitors?
± 169 p
     Annual filter ^    
± 41 - 55 p
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Surround Air MT-8500 Specification

ProductSurround Air MT-8500
16.8 x 15.5 x 5.8 in
(42.7 x 39.4 x 14.7 cm)
Weight10 lb (4.5 kg)
Coverage (up to)500 sq. ft. (46 m2)
Dust free (CADR)
Pollen free (CADR)
Smoke free (CADR)
Airflow speed135 - cfm (229 - 0 m3/h)
- Lifespan
- Replacement cost ($)
Pre filter
HEPA filter
- Lifespan
- Replacement cost ($)
HEPA filter
1 year
Carbon filter
- Lifespan
- Replacement cost ($)
Activated carbon filter
1 year
Ionizer/ TechnologiesIonizer
UV-light/ PCO
Germicidal UV lamp
3.5 years
Other filter
Photocatalytic oxidation filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Multi-Tech 8500 Spare Filter
1 year+- 36
Multi-Tech 8500 Spare Filter + UV Lamp
1 year+- 55
Optional/ Addon
Noise level30 - 50 dB
Power consumption55 W
Timer/ Scheduler2, 4 8 hours
SensorsAdvanced Sensor Technology
More color options
Auto mode
Air qualityAQ indicator
Filter change indicator
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty3 years
Email/ Phone support
Product image

Key features

  • 6 advanced purification technologies tested and recommended by Government Agencies
  • Cleanable pre-filter
  • Professional-Grade, Cleanable True HEPA filter
  • Activated Carbon Filter
  • Germicidal UV lamp and Photocatalyst Oxidation Filter
  • Ionizer
  • 3 fan speed with Auto mode
  • 3 years warranty

Surround Air MT-8500 review

  • Entry level price with one of the lowest filter replacement costs.
  • Proven 6-stage purification technologies cater for large coverage area.
  • High quality True HEPA filter made with ultra-fibrous and ultra-absorbent material.
  • Both pre-filter and HEPA filter is cleanable (light vacuuming).
  • Long lasting Germicidal UV lamp that has a lifespan of up to 3.5 years.
  • Permanent Photocatalytic oxidation filter that helps reduce strong chemicals, bacteria and odors.
  • Auto mode, timer and filter-change sensor comes standard.
  • Up to 3 years official warranty.
  • Not the strongest airflow for a 500 sq. ft. area air purifier.
  • No air quality indicator that is available in Intelli-Pro model.
Surround Air MT-8500 dimension
16.8 x 15.5 x 5.8 in
(42.7 x 39.4 x 14.7 cm)
Surround Air MT-8500 weight
10 lb (4.5 kg)

A significant improvement over the older Surround Air models, Surround Air Multi-Tech 8500 (MT-8500) new modern aesthetic is much more appealing that user will truly value. Controls is nicely laid out up front with only few buttons to toggle, the simpleness design hid the air vent well on both sides without any penalization on the airflow distribution. Surround Air Multi-Tech 8500 (MT-8500) is also nicely shaped with no razor-sharp sides and build quality is decent with no signs of off-gassing. Lastly 3 years warranty is also standard in Surround Air Multi-Tech 8500 (MT-8500) air purifier.

Airflow efficiency and purifying coverage

Surround Air Multi-Tech 8500 (MT-8500) might not have the best airflow delivery rate, it is capable of delivering purifying for large spaces like living room, kitchen or master bedroom. The 6-stage purification consist of a cleanable Pre-Filter that covers larger particles and at the same time enhancing the performance of the other filters. True HEPA filter (recommended by the Department of Homeland Security and the U.S. Centers of Disease Control) handles finer particles that is not capture by pre-filter. A dedicated Activated Carbon Filter and Photocatalyst Oxidation Filter for chemicals, gases odors including cigarette smoke elimination. Germicidal UV Lamp (recommended by Air Institute of Respiratory Education) to destroy microorganisms such as germs, viruses, bacteria and fungi like mold. Last by not least an ionizer that releases negative ions to merge with particles resulted an heavier airborne particles that will fall to the filters.

Noise level and power consumption

Surround Air Multi-Tech 8500 (MT-8500) noise level is curbed thanks to the seamlessly sealed body platform. Noise level is soft at low to mid fan speed, while higher at high fan speed. Auto mode is available that will reduce the fan speed thus noise level when no pollutants is detected.Secondly, Surround Air Multi-Tech 8500 (MT-8500) energy usage is low that is perfect for 24 hours operation. Hardly any electricity usage at low fan speed while only slightly higher at hi fan speed. Again Auto mode is available to make the appropriate speed adjustment when needed.

noise graph

Final thoughts on Surround Air Multi-Tech 8500 (MT-8500)

In general, we are more than satisfied with Surround Air Multi-Tech 8500 (MT-8500) 6-stage purification and enhanced practicality although airflow delivery rate could do with a little bit improvement. With the upsides clearly outrank the downsides, Surround Air Multi-Tech 8500 (MT-8500) is a good alternative choice from your typical Honeywell, Holmes models.

Covered against
Surround Air MT-8500 VS Dust



Surround Air MT-8500 VS Pollen



Surround Air MT-8500 VS Hair

Hair/ Pet hair


Surround Air MT-8500 VS Dust mite

Dust mites


Surround Air MT-8500 VS Mold/ Mildew

Mold/ Mildew


Surround Air MT-8500 VS Pet dander

Pet dander


Surround Air MT-8500 VS Virus/ Germ

Virus/ Germ


Surround Air MT-8500 VS Tobacco smoke

Tobacco smoke


Surround Air MT-8500 VS Chemical



Surround Air MT-8500 VS VOCs



Surround Air MT-8500 VS Smoke/ Gas

Smoke/ Gas


Surround Air MT-8500 VS Odor



Unquestionably Surround Air MT-8500 6-stage filtration is highly effective when pit against household and micron-size contaminants, allergens, microorganisms. Driven by high airflow intake/ outtake and wide purifying coverage, Surround Air MT-8500 incorporated filtration is fantastic in removing hair, dust, dust mites, pollen, mold, spores, mildew, fungi, germs and pet dander.  As for odors and smokes, Surround Air MT-8500 is also superb in removing chemicals, cooking odors, detegent odors, VOCs, tobacco smokes, cigarette, radon and ammonia.

Verdicts and ratings

Build quality
Airflow delivery
Particle Filtration
Smoke Filtration
Surround Air MT-8500 air purifier

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