Filter monitoring

Optimal strategy for replacing filters

Precise filter monitoring and analysis

Differential pressure sensors monitor the pressure drop across the filter and indicate when a filter needs to be replaced. Timely filter replacement reduces energy consumption as well as wear and the likelihood of overall system failure.

Increased end-user willingness to purchase replacement filters

Filter saturation depends on operating hours and average air pollution levels. Since these are highly individual, customers often neglect replacement intervals. A sensor-based filter alarm enables cost-optimized replacement.

Cost optimization through ideal replacement timing

If a filter is replaced at the right time, filter performance can be optimized and energy costs and filter replacement costs can be reduced at the same time.

Increased indoor air safety

Well-maintained air filtration systems ensure a lower particle count in indoor air, minimizing the risk of airborne virus and bacteria infection. This provides greater indoor air safety and can reduce incidents of illness.

Proven differential pressure sensor technology

Sensirion's sensor solutions are used worldwide in filter monitoring applications, building services and air handling equipment such as air purifiers.

Continuously optimized measurement methods

Sensirion is continuously researching new, cost-effective and innovative measurement methods to enable reliable filter monitoring in all air purification segments worldwide.

Related sensors

Active 5


Creating space for your ideas

Active 10


Proven and improved

Active 3


All-in-one air quality sensing



PM2.5 Sensor for HVAC and air quality applications SPS30

  • Sensor
  • Particulate matter
Trend topic

Indoor air quality

In recent years, a new demand for clean air has developed among many people who value healthy living. When it comes to air quality, most of them rightly are worried about atmospheric pollution, but tend to forget about indoor air pollution.

Specialist article

The tech that will build our tomorrow – HVAC macro trends

How will we be living in the future? This is a question that humanity has always yearned and worked to answer. Finding out the answer, surprisingly, is not limited to time travel.