Air Purifier

Winsen is a world-renowned gas sensor manufacturer and supplier. A variety of sensors are intelligently combined and developed to form the overall concept of the module. The extremely flexible assembly combination can meet the sensitivity, corresponding speed, stability, power consumption and size requirements of all air purifiers on the market.

Air purifier: the guarantee of clean air

sensors for Air Purifier

Air purifiers are used in home, medical, and industrial fields. The main function is to remove particulate matter in the air, including allergens, indoor PM2.5, etc. At the same time, it can also solve the air pollution problem of indoor, underground space, and volatile organic compounds in cars caused by decoration or other reasons.

There is smog in winter, and TVOC in summer, people are often used to closing doors and windows and turning on air conditioners in summer and winter, which makes it harder to reduce indoor pollutants. Therefore, if you stay in an air-conditioned room for a long time, you will often feel dry in mouth and nose, probably even itchy throat, mild cold symptoms, and get various respiratory diseases in severe cases, so the use of air purifiers is particularly important.

Basic requirements--high sensitivity and fast response

Example diagram of installing the air quality sensor MP503 in the purifier control panel

▲ Example diagram of installing
the air quality sensor MP503
in the purifier control panel

MP503,the planar semiconductor gas sensor is highly sensitive to smoke and formaldehyde, and has the characteristics of fast response and recovery, low power consumption, simple detection circuit, good stability, and long life.

Air Purifier

Modular design: closely related in product development and industrialization

ZP07 air quality module

▲ ZP07 air quality module

ZP07 air quality module made of MP503 gas sensor, adopts advanced chip thick film semiconductor gas sensor. The sensor has extremely high sensitivity to organic volatile gases such as formaldehyde, benzene, carbon monoxide, ammonia, hydrogen, alcohol, cigarette smoke and essence, has almost become an exclusive product in the air purification industry. It has been calibrated at the factory, it has the characteristics of sensor fault self-diagnosis, simple high and low level output, saves a lot of time and cost of circuit development for customers, and it has become the mainstream TVOC detection product in the market.

Why Winsen has so many dust sensors(PM1.0/PM2.5/PM10)?

The mold of the purifier is relatively complex, and the internal structure requirements are high. The position of the dust sensor in the purifier determines the effect of the purifier on dust induction to a certain extent, especially our precise control of the airflow design direction. Winsen's flexible and diverse dust sensors are upgraded several times every year to meet the different customization requirements of various purifier manufacturers. Popular products are ZH06, ZH07, ZH09.etc.

Among the air pollutants, the most harmful to humans is the fine particulate matter with a diameter of less than 2.5 microns (ie PM2.5, medically called particulate matter that can enter the lungs). And our dust sensor has a minimum resolution particle diameter of 0.3μm, which is completely suitable for mid-to-high-end air purifiers.

Formaldehyde detection: popular combination on air purifiers

The release period of indoor formaldehyde is generally 3-15 years. Short-term ventilation cannot completely remove indoor formaldehyde. The degree of harm of formaldehyde to the human body:

  • When formaldehyde concentration reaches 0.06-0.07mg/m³ per, children will feel mild asthma;
  • When formaldehyde concentration reaches 0.1mg/m³, there will be peculiar smell and feel discomfort;
  • When formaldehyde concentration reaches 0.5mg/m³, it can irritate the eyes and cause tears;
  • When formaldehyde concentration reaches 0.6mg/m³, which can cause throat discomfort or pain. When the concentration is higher, it can cause nausea and vomiting, cough, chest distress, asthma and even pulmonary edema;
  • When formaldehyde concentration reaches 30mg/m³, it will immediately cause death.
ZE08K-CH20 electrochemical formaldehyde sensor module

▲ ZE08K-CH20 electrochemical
formaldehyde sensor module

For the decoration of new houses and the entry of new furniture, people are most concerned about whether there is formaldehyde pollution. When the decoration is completed, the demand for purchasing air purifiers is the highest. ZE08-CH2O electrochemical formaldehyde sensor module can well solve the problem of formaldehyde detection and enhance the competitiveness of your air purifier.

Avoid the risk of high ozone concentration in air purification

Although countless air purifier products publicize the concept of "negative oxygen ion", however, many negative oxygen ion machines will generate high concentrations of ozone when working, causing human discomfort. When the ozone concentration reaches 200 micrograms / cubic meter, it may damage to the central nervous system of the human body, as well as headaches, chest pains and a decrease in thinking ability. A certain ozone concentration is also an important indicator to ensure the disinfection effect, save energy and prevent pollution. Therefore, when using the negative ion disinfection machine, you need to pay attention to the concentration of ozone to ensure that its concentration is within the standard range,which requires the ozone sensors monitoring. The ZE25-O3 electrochemical ozone module is the best choice. The electrochemical module is easy to use and time-saving.

Smart appliance

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Air quality sensor module CO2 sensor Formaldehyde sensor Temperature and humidity sensor Dust sensor VOC

Flat Semiconductor Integrated Gas Sensor ZP01


ZP01-MP503 air-quality module adopts flat surface semiconductor gas sensor. The module has very high sensitivity to volatile organic gases such as formaldehyde, benzene, carbon monoxide, ammonia, hydrogen, alcohol and smoke of cigarette, essence &etc. The module has been aging, debugged, adjusted and calibrated. So it has good consistency and high sensitivity.

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Flat Semiconductor Integrated Gas Sensor ZP07-MP503


ZP07 air-quality module adopts flat surface semiconductor gas sensor. The module has good sensitivity to volatile organic gases such as formaldehyde, benzene, carbon monoxide, ammonia, hydrogen, alcohol and smoke of cigarette, essence &etc. The module has been aging, debugged, adjusted and calibrated. So it has good consistency and high sensitivity. 

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NDIR CO2 Sensor MH-Z19D


MH-Z19D NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

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NDIR CO2 Sensor MH-Z19C


MH-Z19C NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

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NDIR CO2 Sensor MH-Z19E


MH-Z19E NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

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Electrochemical Formaldehyde Sensor ZE08K-CH2O


ZE08K-CH2O electrochemical chemical formaldehyde module is a universal, small Module. The use of electrochemical principles to detect CH2O in the air, which has good selectivity and stability. At the same time, it has digital output and analog voltage output for easy use. ZE08K-CH2O is a universal gas module designed to design mature electrochemical detection technology with excellent circuit design.

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Temperature and Humidity Sensor Module ZS05


ZS05 temperature and humidity module is a digital signal output temperature and humidity sensor module. It uses dedicated digital module acquisition technology to ensure high reliability and stability. ZS05 adopts standard IIC communication mode, which can be directly connected to IIC communication bus, easy to use

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Infrared Dust Sensor ZPH02


This sensor integrates infrared PM2.5 detection technology, using particle counting principle to detect PM2.5 in the environment. It can detect the particles (diameter ≥1μm). Before delivery, the sensor has been aged, debugged, calibrated and has good consistency and high sensitivity.

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Infrared Dust Sensor ZPH04


This sensor integrates infrared PM2.5 detection technology, using particle counting principle to detect PM2.5 in the environment. It can detect the particles (diameter ≥1μm).

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Infrared Dust Sensor ZPH04B


This sensor integrates infrared PM2.5 detection technology, using particle counting principle to detect PM2.5 in the environment. It can detect the particles (diameter ≥1μm).

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Laser Dust Sensor ZH07


Laser Dust sensor module ZH07 is a common type, small size sensor, using laser scattering principle to detect the dust particles in air, with good consistency and stability. It is easy to use, with UART & PWM output.

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Laser Dust Sensor ZH03B


Laser Dust sensor module is a common type, small size sensor, using laser scattering principle to detect the dust particles in air, with good selectivity and stability. It is easy to use, with serial port output & PWM output.

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Laser Dust Sensor ZH06-I


Laser Dust sensor module is a common type, small size sensor, using laser scattering principle to detect the dust particles in air, with good consistency and stability. It is easy to use, with UART & PWM output;Small size is suitable for integrating.

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MEMS VOC Sensor GM-502B


MEMS combustible gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. Use simple circuit can convert the change of conductivity of the gas concentration corresponding to the output signal.

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MEMS VOC Sensor Module ZM01


MEMS combustible gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. The sensor has high sensitivity and small size, and adopts I2C digital signal output mode to facilitate the observation of multiple sensor networks. It also pre-sets a pin for alarm trigger signal output, which can be widely used in many fields such as environmental safety and portable instruments.

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How to choose the right sensor for your project?

We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.

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Support

The first six FAQs. Use the search bar above to reveal more!

Can Wave Soldering Be Used for Semiconductor Sensors?

Yes, but you need to pay attention to the following points: 1. Use rosin flux with the least chlorine; 2. Speed: 1-2m/min; 3. Preheating temperature: 100±20℃; 4. Soldering temperature: 250±10℃;

What is the Service Life of Mq Series Sensors?

Usually, the life span is about ten years, and the actual application is related to the use environment and method of use.

Why Does the Sensitivity of the Semiconductor Sensor Reduce During Use?

There are five main reasons: 1) Organosilicon, sulfide, phosphide, chlorine (fluorine) compound, alkali metal, etc. will poison the sensor; 2) The power supply voltage of the sensor has changed; 3) The sensor has been used for too long (Exceeded service life); 4) The test gas concentration is too high; 5) The sensor is subjected to severe vibration or destructive external conditions.
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