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There are two types of ionic air purifiers, the fanless and fan base ionizers. The fan base ionizer uses its fan to circulate air around the room rapidly, but it is noisier and consumes more energy, while the fanless types distribute air slowly, taking a longer time to purify air, but are noiseless and more energy efficient.
For seasonal affective disorder (SAD), a randomized controlled trial (RCT) comparing high (4.5x10 14 ions/second) and low (1.7x10 11 ions/second) flow rate negative air ionization with bright light therapy found that the post-treatment improvement percentage was 57.1% for bright light, 47.9% for high-density ions and 22.7% for low-density ions. [8]
Operational costs can easily amount to $50 annually, since you should be running air purifiers constantly to garner the benefits. Filter replacements can run upwards of $100 a year, all told.
Most ionizers produce less than 0.05 ppm of ozone, an industrial safety standard. There are two major subdivisions: the fanless ionizer and fan-based ionizer. Fanless ionizers are noiseless and use little power, but are less efficient at air purification. Fan-based ionizers clean and distribute air much faster.
Negative air ions (NAI) are important air component, generally referring to the collections of negatively charged single gas molecules or ion clusters in the air. They play an essential role in maintaining the charge balance of the atmosphere. [1] [2] The main components of air are molecular nitrogen and oxygen.
Ionized nitrogen radiates primarily as a set of lines in the blue part of the spectrum. [14] A violet hue can occur when the spectrum contains emission lines of atomic hydrogen. This may happen when the air contains high amount of water, e.g. with lightnings in low altitudes passing through rain thunderstorms. Water vapor and small water ...
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