CleanZone® SL


The strong, silent type.

The CleanZone SL combines high performance with ultra-low noise.

Exceptional pollution control

Diesel soot, allergens, viruses and all other airborne pollutants, including tiny but deadly ultrafine particles, are captured by the CleanZone SL.

The IQAir CleanZone SL stand-alone air purifier was developed for offices, schools, hospitals, and other commercial sites negatively effected by elevated levels of air pollution. IQAir filtration media in the CleanZone SL removes more than 99% of all particles 0.3 microns or larger and is proven to filter ultrafine particles down to 0.003 microns in diameter, the smallest particles that exist. Diesel soot, allergens, viruses and all other airborne contaminants are filtered continuously and clean, healthy air is returned to the environment from the top of the CleanZone SL system.

High airflow

The CleanZone SL delivers up to 600 cubic feet per minute of clean air, which is six times higher than most other low-noise systems.

The CleanZone SL has an exceptional airflow capacity of up to 600 cubic feet per minute (cfm) while meeting the most stringent noise standards and providing unequaled air filtration. This airflow is six times higher than what typical air filtration systems are capable of delivering at low noise levels. The high capacity of the CleanZone SL enables it to provide up to four complete air changes per hour in a 9,000 cubic foot room. Air is drawn in from the bottom of the CleanZone SL system and is directed upward into the environment to avoid annoying drafts and discomfort.

Exceptionally quiet

The CleanZone SL is the quietest high-performance air purifier in the world. It is virtually inaudible even in quiet indoor spaces such as classrooms.

Even at the highest fan speed setting the CleanZone SL only generates an incredibly low sound level of 45 dB(A). That is a three times lower sound level than that generated by typical professional air purifiers and practically inaudible even in a quiet office environment.

Highly effective against ultrafine particles

IQAir HyperHEPA filtration is effective against particles 100x smaller than what ordinary filters claim. 

Click here to see why particle size matters ...

While the adverse health effects of PM2.5 and PM10 have been studied for many years, scientists agree the most harmful form of air pollution is ultrafine particles. Ultrafine particles are by definition smaller than 0.1 micron. By sheer number, they make up over 90% of all airborne particles. Because a particle that is 0.1 micron in size weighs 1,000,000 (one million!) times less than a 10 micron particle, ultrafine particles are grossly underrepresented in PM2.5 and PM10 measurements.

Because they are so tiny ultrafine particles can stay in the air for hours, are easily inhaled deep into our lungs and get absorbed into the bloodstream. From there ultrafine particles reach every organ and every cell in our body and disrupt their proper operation. Ultrafine particles have been linked to heart attacks, strokes, asthma and even cancer. An independent study conducted by the University of California, Riverside, demonstrated that the IQAir CleanZone SL is capable of 94% of ultrafine particles from the air in a large classroom.

Powerful tool for allergens and microorganisms

The CleanZone SL is extremely effective in the removal of all types of allergens and microorganisms, including viruses, bacteria, pollen, dust and other allergens.

The CleanZone SL is capable of cleaning the entire air in a 1000-square-foot space once every 15 minutes. This means that room air pollutants are pulled through the CleanZone SL’s 99% efficient HyperHEPA filter four times an hour. The result is a very high reduction in the concentration of allergens and microorganisms in room air.

Tamper-proof exterior

The CleanZone SL was designed to perform at its best in busy public areas, such as open-plan offices, classrooms and medical facilities.

Unlike consumer air purifiers, the CleanZone SL is designed to be inherently tamper-proof. Access to filters, fan speed controls and the power cable can all be limited and made available to authorized staff only.

100% Ozone free

IQAir’s mechanical HyperHEPA filtration technology is the safest, healthiest and most effective way to clean the air.

The CleanZone SL removes more than 99% of all the particles in the air without using unsafe or unproven technologies such as ozone generation, ionization, or ultraviolet radiation. Equally important, the CleanZone SL filtration media is proven effective against ultrafine particles, including viruses, down to 0.003 microns, the smallest particles that exist. Why settle for air filtration gimmicks or less effective technologies when IQAir's unique design offers proven protection against even ultrafine particles – without harmful byproducts?

Energy efficient

The CleanZone SL is remarkably powerful, yet it needs no more energy than a conventional lightbulb.

While the CleanZone SL is one of the most effective air cleaning systems ever designed, it requires less than half the power of much smaller consumer air purifiers. At 75 watts of electricity on its highest setting, the CleanZone SL uses about the same as a conventional light bulb. This is due to an ultra-efficient fan and a very large filter surface area, which allows air to pass with ease through the dense filter.

Quiet, unobtrusive operation

The CleanZone SL was designed to blend easily into almost any environment, delivering exceptional amounts of clean air without adding noise.

With its slim design (less than 10 inches deep (25.40m2), simple exterior, and ultra-low noise performance, the CleanZone SL is an unobtrusive, but powerful, air cleaner that continuously, quietly and efficiently removes 99% of all the particles in the air.  The CleanZone SL supplies an abundant flow of clean, pure air into the environment without calling attention to itself. 

Preserves precious floor space

The CleanZone SL mounts vertically or horizontally, up high or down low, freeing up valuable floor space in classrooms, busy offices and other commercial spaces.

With simple mounting hardware, the CleanZone SL can be mounted either horizontally or vertically, either high up on a wall or closer to the floor. As a result, airflow from the CleanZone SL can be directed where it's needed, without creating drafts or air disturbances that detract from its unobtrusive operation.

CleanZone SL accessories

A variety of accessories for the IQAir CleanZone SL increases the flexibility and adaptability of this powerful air purifier.

An optional silencer system can be added to the air outlet of the CleanZone SL to make what is already the quietest high-performance stand-alone air purifier even quieter. Casters can be added to the base to make the CleanZone SL transportable within the environment. Anti-tampering accessories also make the CleanZone SL even safer to use in any environment.

Economical, low-maintenance operation

The CleanZone SL provides remarkable air-cleaning power for classrooms and other noise-sensitive environments, but costs very little to operate and maintain.

The CleanZone SL requires only 100 watts of electricity, which is about the same as a conventional light bulb. It costs only a few cents a day to clean the air in environments up to 9,000 square feet. The powerful IQAir CleanZone SL fan is maintenance-free, so there’s no cost to keep your CleanZone fine-tuned.

Expert support, installation

IQAir professionals are available to help at every stage of installing, maintaining and monitoring your CleanZone SL system.

Your IQAir CleanZone SL can be installed and supported by a team of IQAir authorized technicians in many parts of the world as needed. This includes identifying the ideal location for the air cleaners and the mounting of the systems. The performance of a system after installation can be verified by the IQAir team using a handheld laser particle counter to measure air contaminants at the inlet and outlet.

Air Change Optimization technology

In designing the CleanZone SL air purifier, IQAir engineers carefully studied air cleaner airflow patterns in an effort to create the most effective air cleaning possible.

The result was IQAir’s Air Change Optimization (ACO) technology, which allows for better air cleaning by cleaning not only more air, but distributing it more effectively in the room. By applying ACO technology to the CleanZone SL, IQAir engineers were able to produce more clean air with less noise than ever before thought possible for a high-performance air purifier.

Advanced Micro-Fiber filtration

AMF technology features thinner filter fibers that create an almost impenetrable barrier to airborne particulates.

The CleanZone SL features Advanced Micro-Fiber (AMF) filtration technology. AMF fibers are 10 times thinner than conventional filter fibers. This allows air to easily pass through the filtration media while the ultrafine threads create an almost impenetrable barrier for pollution particles. AMF filter technology in the CleanZone SL allows the air to pass through the filtration media with less resistance and turbulence, adding to the CleanZone SL’s ultra-low noise performance.

Swiss quality

Swiss Made is more than just a label of origin. It's a sign of outstanding quality, uniqueness, superior design, innovation, precision and reliability.

The CleanZone SL has not only been Swiss designed and engineered, it is also manufactured in Switzerland. While many of our competitors outsource the manufacturing process of their air cleaning system to other companies, for IQAir the manufacturing process is the logical conclusion to the process of creating a high-performance product. It exemplifies our commitment not only to what we make, but how we make it. By using the highest quality components, a team of dedicated craftsmen and women, and manufacturing processes refined over 50 years, IQAir is able to build the finest air purifiers in the world.

Studies confirm CleanZone SL superiority

Independent third-party testing confirmed the superior filtration capabilities of IQAir's filtration technology.

A study conducted by the University of California, Riverside's College of Engineering – Center for Environmental Research and Technology demonstrated that the IQAir CleanZone SL stand-alone air filtration system removed 90% of black carbon particles and 94% of ultrafine particles in the air from a classroom in Jurupa Valley, Calif. Other government studies of IQAir filtration technologies have yielded similar results, clearly showing the superior filtration capabilities of IQAir's HyperHEPA filtration technology.

CleanZone® SL Tech Specs

Take an in-depth look at the performance facts and figures of the CleanZone SL.