Initially it was 4, now it’s the 5 Key Factors Model. With reference to our antecedent post, we have now added Scientific Peer Review as the fifth key factor in our air purifier review model.
The shortage of scientific peer reviews is a significant barrier to all the interested parties in recognising the postulations of air [...]

An objective and fact-based ionic air purifier review. That’s what most users want. That’s also precisely what manufacturers want. Yet on the internet it is diificult to find such an ionic purifier review.
At one extreme, you have the ludicrous ionic purifier review that promises the world that users find hard to believe and which manufacturers [...]