OurAir SQ 1750

Antiviral Room Air Purifier

OurAir SQ 1750

SQ1750 in office setting

OurAir SQ 1750 is designed to provide virus-free air in medium-sized spaces - from classrooms and offices to bistros, boutiques, hairdressers, doctor's offices and more.

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Material Number
OurAir SQ 1750
  • Rooms up to

    140 m² for efficient virus-removal

  • Air flow rate

    1750 m³/h

  • Filter

    HEPA* H14*according to ISO29463 and EN1822

  • Captures

    > 99.995%
    of viruses, bacteria and other micro organisms


OurAir SQ 1750 mobile room air purifier provides healthy and clean air for rooms up to 140 m². Several units can be used together for larger rooms. The pre-filter traps dust, lint, hair and other fibers. The individually tested H14 HEPA filter captures more than 99.995% of viruses, smoke particles, bacteria and other microorganisms down to .015 microns, making it able to deliver air quality equivalent to what you will find in hospital cleanrooms.

Provide clean, virus-free air in your building to protect against COVID-19, influenza and other viruses.

Clinically-clean air

Individually-tested HEPA filters1 capture >99.995% of viruses, bacteria and other micro-organisms.

Ultra quiet operation

Efficient motors and intelligent filter designs deliver high performance at a sound output of just < 30 – 40 dB(A)2

High air exchange rates

Powerful air flows clean more air, more quickly for improved safety and cleanliness.


Mobile plug-and-play solution for healthy and virus-free air.

Energy efficient

Optimized system and filter media designs cut down on resistance and boost energy efficiency.

Easy Maintenance

Filters can be replaced in minutes, and are easily accessible.

Proven effectiveness

Several studies from the Karlsruhe Institute of Technology (KIT) confirmed that our room air purifiers OurAir TK 850 (predecessor of the SQ 1750) and OurAir SQ 2500 significantly reduce the number of particles in the room and thus contribute to reducing the risk of infection.

Quick and homogene cleaning of the overall room - 99% particle reduction in 30 minutes

OurAir SQ 1750

One device efficiently cleans the air in a room up to 140 m2 by completely exchanging the air in the room 5 times/hour. It will provide medical-grade filtration by exchanging the air 12 times/hour in a room up to 60 m2.

The smaller the room, the more often the air is cleaned per hour and vice versa (see graph below).

Clean Air Delivery Rate (CADR)
1750 m3/h

  • 700 m² Room

    1 time / Hour

  • 140 m² Room

    5 times / Hour(recommended)

  • 120 m² Room

    6 times / Hour

  • 60 m² Room

    12 time / Hour

Tech Specs

  • Technical Information

    Feature Feature Detail
    Dimensions (L x W x H) 0.65 x 0.65 x 1.25 m
    Recommended Room Size Approx. 140 m2
    Net Weight (with filter) 85 kg
    Cabinet Material Powder-coated steel – 1.5 mm thick
    Power Supply 230 V
    Power Consumption 75 W @ average operation speed (850 m³/h); 320 W @ maximum (1750 m³/h)
    Circuit Breaker Integrated – 4 amp
    Air Flow Rate 400 – 1750 m3/h
    Air Exchange Rate ~ 5 times/hour (140 m² room); ~ 6 times/hour (140 m² room)
    Filtration Efficiency HEPA H14^ filter captures > 99.995% of viruses, bacteria and micro-organisms
    Pre-Filtration ISO ePM1 55%
    Screen PIN-protected 7" LCD touch screen
    Options Damper; ozone-free UV-C stage; activated carbon pre-filter

    Subject to change without notice. ^According to ISO29463 and EN1822

    SQ 1750 Explosion Image
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Other Products

  • OurAir SQ 2500

    For larger spaces up to 200 m² (per unit) Captures > 99.995% of viruses
    €3,500.00 Price plus taxes
    Learn More
  • OurAir Activated Carbon Prefilter for SQ 1750

    Filtration Efficiency: ISO ePM1 55% Dimensions: 622x520x48 mm
    €216.50 Price plus taxes
    Learn More
  • OurAir Particle Pre-filter for SQ 1750

    ePM2.5 65% Dimensions: 622x520x48 mm
    €114.50 Price plus taxes
    Learn More
  • OurAir HEPA H14-Filter SQ 1750

    H14-HEPA-Filter Dimensions 592x490x292 mm
    €440.50 Price plus taxes
    Learn More

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