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Air Purifiers, Humidifiers, Dehumidifiers: What’s The Difference?

Air Purifiers, Humidifiers, Dehumidifiers: What’s The Difference?
Image by Roman Coval / Pexels

These days, we can breathe easy at home knowing it’s the safest place we could be in the midst of the COVID-19 pandemic. But what happens when it ceases to be so?

The quality of the air we breathe inside our homes is often affected by factors in our environment. Cigarettes, everyday cleaning materials, personal care products, and other items we use at home usually contain chemicals that, when inhaled, could be harmful to health.

In fact, according to the United States Environmental Protection Agency < >, the air inside homes and buildings could be “more seriously polluted than the outdoor air in even the largest and most industrialized cities.”

Exposure to polluted air may not only result to headache or skin irritation; sometimes, it can also trigger asthma, allergies, and other more serious respiratory problems. This underscores the importance of having clean air to breathe, and thanks to innovations, appliances that make this possible are now available in the market.

Air purifiers

Air purifiers work by eliminating impurities such as smoke, dust mites, pet dander, and even unwanted odors from the air. According to a study entitled “Enhancing Indoor Quality – The Air Filter Advantage” (2016), the use of air cleaners and filters could help improve indoor air quality.

Generally speaking, air purifiers that use HEPA (High Efficiency Particulate Air) filters or active carbon filters are safest to use. These capture fine airborne particles and trap odors, respectively.

Air purifiers can help relieve the symptoms of asthma and decrease your chances of getting an allergy attack by capturing airborne irritants and allergens through the HEPA filters. Note that the CADR (Clean-air Delivery Rate) of your air purifier should be at least 300 and above -- the higher the CADR is, the faster it can remove and filter micro-pollutants. As the purifier cleans the indoor air, it also provides a healthier living environment, especially for those with respiratory issues.

Air purifiers don’t come cheap; however, getting one for your family’s health is definitely a sensible investment -- you just need to find the one that fits your needs best.

1. The Sqair Air Purifier by SmartAir



Best for an area of up to 40 square meters, the Sqair Air Purifier can clean the air in a room this size at a CADR of 315 cubic meters per hour within only 25 minutes. The HEPA filter can last for about 6 months before replacement. With a noise level of only 52 decibels -- same as the sound of rainfall -- it is quieter than most air purifiers. Its minimalist design will look great in any home.

SRP: Php 6,300, available on

2. Mi Air Purifier 2S by Xiaomi


With a CADR of 310 cubic meters, the Mi Air Purifier can efficiently purify the air in a 37-square-meter room. Its 3-layer cylindrical filter allows maximum air purification. The holes around its tower structure is not simply a matter of aesthetics – the design helps increase the air intake space for consistent air flow. The Mi Air Purifier can be controlled through the Mi Home application on your phone so you can view air quality and humidity, adjust the fan settings, and even remind you when it’s time to replace the filter. Its OLED display shows you relevant information at a glance.

SRP: Php 7,495, available on Lazada

3. The MR 600 by Air Master


This air purifier can thoroughly clean an area of up to 32 square meters with a CADR of 400 cubic meters per hour. Through a 4-step filtration that collects dust and deodorizes at the same time, the MR 600 has a refinement rate of 99% and can purify a room in just 10 minutes. Its sleek shape and display screen make for a stylish addition to your home.

SRP: Php 7,999.00, available on Air Master PH


Humidifiers and Dehumidifiers

If an air purifier’s main job is to clean the air, humidifiers and dehumidifiers control the moisture in the air to keep the temperature at a comfortable range. A humidifier adds moisture while a dehumidifier removes excess moisture to lower the humidity level. Note that the humidity inside your home varies -- there are areas which can be more humid than others, such as a bathroom that is not properly ventilated, or a kitchen where water is mostly used.

Moisture in the air is measured by relative humidity (RH). This refers to how much water vapor is in the air in relation to how hot or cool it is. The most comfortable RH level is thought to be between 30% and 50% -- any more than that can cause bacterial growth, according to Healthline.

A humidifier is a good investment for areas with dry climate. According to Medical News Today, it can alleviate the condition of people who are experiencing dry skin or irritated eyes, dryness in the throat or airways, sinus headaches, frequent coughs, allergies, and those who tend to experience nose bleeding.

On the other hand, a dehumidifier prevents the growth of dust mites, molds, and other harmful bacteria that thrive in high humidity levels. Aside from its health benefits, a dehumidifier can also protect your home by increasing the longevity of your furniture and wallpapers and prevent water stains.


1. Mi Smart Antibacterial Humidifier by Xiaomi


With a 4.5-liter water tank capacity, the Mi Smart Antibacterial Humidifier can last from 12 to 15 hours. It also has a detailed loop that indicates the appropriate fogging level based on the climate. It can be connected and controlled on the Mi Home application on your mobile phone as well.

SRP: Php 1,995, available on Lazada

2. Atomizer Giant by Mia Maison


This 5-in-1 product functions as a humidifier, atomizer, ionizer, scent diffuser, and night light. It has a 2-liter water tank that can mist an area of 40 square meters, and adjustable mist settings, an auto power shut-off feature, and color-changing lights to enhance your mood. This modern humidifier is also great for aromatherapy to calm and relax you as it produces a fine mist that spreads the fragrance effectively.

SRP: Php 3,875, available on Shopee and on Lazada

3. 3-in-1 Top Fill Humidifier by Crane


Both a humidifier and a diffuser for essential oils, the Crane Top Fill Humidifier can be adjusted so you get either a warm or cool mist, and you can modify its speed as well. It also has a whisper-quiet option to allow you a good night’s sleep. Other features include a 2-way water supply, night light, and auto shut-off mode.

SRP: Php 4,999.75, available on Lazada



1. Deerma Mini Dehumidifier by Xiaomi


If you are looking for a portable and compact dehumidifier at a very affordable price, this is a perfect choice for you. Ideal for bathrooms or inside cabinets, it has a 360° moisture absorption that efficiently works for 12 to 15 hours.

SRP: Php 1,500, through Xiaomi PYR Lifestyle, an authorized Xiaomi dealer.

2. E-500 Mini Dehumidifier by Eva-Dry


The Eva-Dry is a completely silent dehumidifier that doesn’t even need any batteries or power while doing its job. The non-toxic silica gel in the center changes color to indicate if it has reached full absorption capacity and therefore needs to be recharged. This lightweight and reusable dehumidifier can last 4 weeks before and is ideal for cars and drawers inside your bathroom.

SRP: Php 3,900

3. Deerma DEM-DT16C


Its color-changing display light indicates the level of humidity in your space: red means there is excessive moisture, purple means the air is dry, and blue means the humidity is within the ideal range.  It has a 2-liter removable water tank and a 24-hour timer function, which is convenient when you’re going out and want to ensure your house is protected with dehumidified air while away. It also has a LED display and control buttons for easier operation.

SRP: Php 6,849, available on Lazada

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