In order to announce the air purifier picks, we collected 14 most popular models in the CNET LABS product test facility in Louisville, Kentucky, and conducted a strict test set. Our goal was to determine which air purifier provided the best performance in terms of particle elimination efficiency, energy consumption and quietness, and evaluated each functional set and value.
Particle removal test
The air we breathe is not just air. In fact, it is a combination of human beings and natural particles. The former is mainly composed of hydrocarbons, nitrogen oxides and producing by -products, industrial and automotive emissions, and the latter is mostly represented by acting due to wildfires, sulfuric salt, soot and volcanic activity around the world.
According to EPASome of these fine solids and liquid liquids, which can consist of hundreds of different chemicals, are too small to inhale. PM10 and PM2.5, with a diameter of less than 10 and 2.5 micrometers, have the greatest risk of human health since they have been inhaled once. They damage the proper functions of the lungs and even the lungs and the heart.
Zhao said, “This is the size of our bodies, our lungs, and into the bloodstream. “This is the best environmental risk factor around the world. About 6 to 7 million people die each year.”
Our custom air purifier test chamber can manipulate two fans that guarantee the appropriate mixing of air purifiers, control devices, and the proper mix of air and acting by using a clear view front panel made of flexi glass and gloves with hand access. there is. Inside the chamber, there is a vent port that always checks for a small amount of fresh air, an ignition port that reveals smoke bombs outside the equipment, and an exhaust port that safely removes the remaining smoke. Chamber and building after each exam.
The chamber is not sealed, but it is tight enough to prevent the dangerous amount of smoke from escaping around. Our mission was to create an environment where each air purifier device was exposed to the particle saturated air at the same concentration to make the air a quick and efficient environment with breathability conditions.
We created a customized acting bomb made of 50% of potassium nitrate (KNO3), 40% sugar (sugar) and 10% baking sodium (baking soda) and included safety fuse to ignite away from far away. While sugar serves as our fuel source, potassium nitrate serves as an oxidant, and baking soda causes dry mixtures to be slow and burned.
The TEMTOP PMD331 particle counter was used to see if a 5 gram of smoke bomb drying mixtures produced approximately 590 million to 660 million particles per cubing meter. The device can calculate particles of various sizes, including PM2.5 and PM10, and records this data every 15 seconds. We can calculate the particles of different sizes individually, but the total number of particles we are interested in. This is the sum of all particles of different sizes.
We prepared 5 grams of acting bombs, and it is ignited through the ignition port after installing an air purifier, guaranteeing proper sealing. When the air in the chamber is particle-saturation (580 million particles/m3 or more), turn on the air purifier. The data extracted from the tempo allows you to accurately track the impact of the air purifier on the number of particles in real time.
Noise level
Using the decimel meter, the air purifier measures how big the air purifier is in the middle and high fan settings. It is especially important if you plan to wear an air purifier overnight in the bedroom and do not want to interfere with sleep. We tested this test in the sound improvement studio and checked that the Desibel meter only selected the sound wave stimulus in the air purifier except for other possible sources.
Energy consumption
To answer this question, we used a device called Kill-A-WATT to measure how much power each air purifier spent on other fan settings. Knowing the energy lottery of the air purifier can change the energy fee.
