If recently you have started to feel the change in the environment since the world went under lockdown you know the kind of toxic life you have been living so far. Modern problems do come with modern day solutions and the right one for this is getting an Air purifier. But the question that a layman would ask is Do we need one?

The answer is absolutely yes and today we are going to understand why through a product review with a new promising purifier in the market, AirMic4S H13 Medical Grade Ultra-Duo. The need for air purification is not just necessary from the standpoint of carbon emissions but also common pollutants like pollen, dust, molds that do not just cause of allergies but can also cause serious health hazards. Then inside the house is not safe as well with free floating PM2.5 particles which are thirty times smaller than human hairs.

The answer to all such problems comes from AirMic4S new model H13 which takes care of these pollutants with their advanced HEPA filter which removes a variety of contaminants from your air, so you and your family can breathe easily. Since there was only one way to find out so we decided to get one and find out about its quirks and features.


The Okaysou AirMic4S H13 has a room presence and the design of the product instantly makes it part of your room. It sits at a height of 14.7 inches and 7 inches on each side. It weighs 7.95 pounds, the fan is resting on a copper motor which is quieter than a brushless or brushed motor. A 12 vane fan keeps the flow clean air coming through and since the motor is on top of the fan it stays clean and cool. The unit itself is made of ABS plastic which makes it light weighted and with a black band seamlessly flowing around the purifier which also separates the intake unit from the airflow section. The intake vents consist of two rows of vertical slits, which are located on both sides of the unit and are designed keeping in mind the large particles like hairs and other residues do not get in and clog the filter.

The control panel sits on top of the purifier making it accessible to the user easily six soft-touch LED buttons, along with six LED indicator lights. The buttons respond to power, the timer, the fan speed, and sleep mode. A small indicator on this panel also indicates filter life and lights when it needs to be changed, once pressed it tells the purifier that filter has been changed and the filter timer is reset. The LED lights correspond to fan speed and timer if activated. The inside of the unit is also illuminated with a beautiful blue backlight which can also be controlled with a button on the panel.


The filter is located in the bottom unit of the filter within a double sponge sealing strip, which surrounds the top and bottom edges of the filter. This prevents air leakage and gives more efficiency than any other purifier. The outer pre-filter can be hand washed with cool water and has to be dried thoroughly before it is ready for use again.

The purifying unit is delivered with default Medical Grade H13 True HEPA Filter which is better than True HEPA, AirMic4S is designed for small to large rooms, bedrooms, offices, nurseries, and kitchens. Use the medical grade filtration system to capture and reduce up to 99.97% of airborne particles as small as .3 microns, including dust, pollen, pet dander, pet hair, smoke, household odors, harmful gases like formaldehyde, ammonia, VOCs. The inner portion is an activated carbon filter, which deals with chemical contaminants. Okaysou gives you a choice of three additional filters form which you can choose depending on your surroundings; Medical Grade H13 Germ Defense Customized Filter, Medical Grade H13 Toxin Absorber Customized Filter, and Medical Grade H13 Odour Remover Customized Filter.


Replacing the filter is easy, and everyone can do it:
Turn the air purifier upside down. Open the bottom by twisting it counter-clockwise, just as the arrows on the bottom represents.
As soon as you remove the bottom, you can take the filter out. If you just bought the air purifier, you will need to take the filter out and remove the plastic package. There is no top or bottom side of the filter, and whichever side you put it in first is OK.
Place the bottom cover back and twist it clockwise to lock the filter inside.


AirMic4S H13 is fairly simple to use and is designed for day to day consumer requirements. It comes with three stage fan speed, the higher speed means better airflow and more effective purification, however, more speed means more noise which does not make it ideal when you are sleeping. For this scenario, there is a sleep mode available that slows down the fan speed and reduces noise level to 24 decibels. You can also use the backlight in the purifier as a night light with the nigh light mode. You can press the button and shift between bright, dim or off suiting best to your needs. It also has pre-set timers that can be selected between 2,4 and 8 hours. When the timer shuts off, the AirMic4S will automatically shut off. Works best for people who do not wish to walk in the house with impure air, they can use this to keep the purifier functional when leaving. So, when they walk in it will be filled with clean and pure air and they won’t worry about the product uselessly running.


The recommended environment for ideal performance is 144 square feet, or a 12-foot by 12-foot room though it is rated to perform even 288 square feet with ceilings 8 foot high. In a space of this size, it can circulate air twice in an hour which subjective to where it is placed how well is the room ventilated. The recommended position is in the middle of the room.

The filter is a three stage deep layered material which purifies air like no other. The outer pre-filter which deals with more thick particles, the HEPA filter removes all the particles smaller than 0.1 microns including dust, pollen, mold spores, and even the vast majority of airborne bacteria. The inner activated charcoal filter removes contaminants like harmful gases, paint residue. It also absorbs residue from cigarette smoke, odor from cooking and is helpful for people who suffer from allergies. Only a few filters in the market are more powerful than AirMic4S.

Operating Cost

Operating costs for this amazing product is next to nothing. This air purifier uses only 25W when running on maximum speed. Running for 24 hours straight and at maximum speed, you will pay 2.2$ monthly. It will vary from state to state depending in what part of the country you live but the monthly cost will never be more than 2 to 2.2$. In standby mode, it uses only 5W.

The highest maintenance that this purifier can ask for is filter replacement, which needs to be done every 6 to 8 months. Operating costs are really affordable, even if the filter needs to be replaced periodically. Filter replacement is essential as is essential which is a very small trade-off for clean air and long life of the product.

Inside the Box

In the package, you will get one air purifier, one Original Ultra-Duo H13 Filter, and a user manual. Nothing else you need for clean air.

5 Years Warranty

At the purchase, you will get four years warranty. However, if you got to the Okaysou website and register your product by following the instructions on the site, you will get an additional one year warranty.

Check Okaysou AirMic4S Medical Grade Air Purifier latest prices and reviews on Amazon


Does Okaysou AirMic4S H13 fair well with the competition?
Since the value this product provides with the price it is placed at does fairly well in comparison to its competition. The appearance with quirks like night mode, sleep mode and timer, it does have few tricks up its sleeve better than its competitors.

The HEPA filter keeps the space free from all the pollutants and the charcoal filter does an excellent job of purifying the air from hazardous particles. It makes sure that you and your loved ones are always in a protective environment and makes an excellent gift for everyone to show them that you care. To sum it up, the product is highly recommended by our side.

Okaysou is a new company in the market who are putting out excellent products. AirMic4s is from their long line of products. There are other types of purifiers which cater to different customer segment depending on their need case. We wish to see more efficient and good products from them enough.

Check Okaysou AirMic4S Medical Grade Air Purifier latest prices and reviews