ULTRASONIC vs EVAPORATIVE HUMIDIFIERS LEVOIT 300S vs SMARTMI 4L WHICH IS BETTER EXCLUSIVE

This is the only such comparison on YouTube.
Which is better, an ultrasonic cool mist or an evaporative humidifier?
Are ultrasonic humidifiers dangerous to your health?

Brands listed are:
1 Levoit Classic 300S Cool Mist Ultrasonic Humidifier
2 Smartmi 4 Liter Evaporative Humidifier

Topics Include:
1 The Hazards of Ultrasonic Humidifiers.
2 Noise Test and Noise Comparison
3 Smart App Overview
4 Conclusion

For details on each unit please visit Amazon.

See our previous video of testing 5 different ultrasonic cool mist humidifiers at this link    • 5 Humidifiers Compared Side by Side ...  

I HAVE LEARNED THAT THE REAL SOLUTION IS WITH USING EVAPORATIVE AIR COOLERS

ULTRASONICS ARE NOT HEALTHY AND USELESS IN LARGER SPACES
I live in a dry and warm climate. The humidity is very low here. So I've tried and tested different ways of adding humidity into the air. One of the first things that people do is to by Ultrasonic Cool Mist Humidifiers (they are cheap for a reason). I tried 9 of those before I fully realized that what the Internet articles say about avoiding them is true. Do not buy! They are not healthy at all and they spread bacteria.

SMALL EVAPORATIVE HUMIDIFIERS ARE HEALTHIER BUT ALSO USELESS IN LARGER SPACES
Next I tried evaporative humidifiers. They are much healthier if they don't use a wet filter or wick that needs to be constantly changed or otherwise become disgusting. Also keep in mind these small humidifiers only work in a small room (150 sf) with doors and windows closed. Otherwise they will not work. This is why evaporative humidifiers made for large spaces cost many hundreds of dollars and use multiple fans and are very large and noisy. That option didn't work for me either.

EVAPORATIVE AIR COOLERS
Next I tried and tested Evaporative Air Coolers. Think of them as a much quieter, healthy version of adding humidity into large spaces even with windows open. So, they are great for that. They are also good as a fan. But they do not cool down a room like a A/C. No product can cool down a room like A/C. That option doesn't exist. If you need an A/C, get one, nothing else can cool like that.

The best way to add humidity into a large room with windows open and not being forced to buy very large and expensive multi fan units is to buy a smaller Evaporative Air Cooler. They do the same job, at cheaper price and much lower noise. They also fan the room. But don't expect A/C performance, nothing works even close to an A/C.

The Key Features a Great Evaporative Air Cooler Must Have
1) Remote Control.
2) Fully removable and detachable water tank. (Otherwise the tank will become filthy and unhealthy. The tank must be removable so it can be properly washed and cleaned.)
3) A reusable and washable wet filter. (Otherwise too expensive to keep buying filters.)
4) Must be very quiet at the lowest fan setting. (Otherwise useless in bedrooms.)
5) Large water tank. Must be 1.5 gallon or larger.
6) Auto shut off of the water pump when out of water.
7) Dimmable display so it doesn't get too bright in bedrooms.
8) A good warranty and support.