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I Bought an Air Purifier Right After Finding How It Actually Helps Reduce My Stress

Learn why an air purifier is a must-have in your home to help you relieve stress

By Lee Min | Apr 18, 2024 | 9:30 am GMT +8

Scientific studies have now determined the impact of air pollution on brain health, with findings linking poor air quality to various psychological disorders such as anxiety, depression, fatigue, and stress. The latter of which is a subject of growing importance since over half (52%) of Singaporeans are feeling more stressed than ever before, and 43% openly admit their mental health is negatively impacting their work productivity, according to data from the Asia Mental Health Index report. So what is stress? How does poor air quality impact stress? And how can an air purifier help relieve stress? Read on to learn more.

52% of Singaporeans are feeling more stressed than ever before, and 43% admit their mental health negatively impacts their work.

What is stress?

In general, stress is a natural response to everyday life events or challenges that we feel unable to manage or control. It's often linked with the feeling of worry or mental tension caused by difficult situations. We all experience stress to some degree, but for some people, it can be an intense emotion that can severely impact their quality of life and longevity.

Stress hormones and their negative impact

Stress hormones are distress signals that get sent to the rest of the body when the brain senses that a stressful situation occurs and can be dangerous or problematic. It's part of your body's "fight or flight" response to the stressful situation. As part of the stress response system, the three main stress hormones that get released by the body are cortisol, epinephrine (adrenaline), and norepinephrine.

According to research, long-term activation of this stress response system, resulting from chronic exposure to stress hormones, can lead to increased risk of various health problems, including:

Anxiety and depression

Problems sleeping

Digestive problems

Heart diseases

Memory and focus problems

Weight gain

Air pollutants and stress

There is a strong association between air pollutants and stress. Numerous studies including this scientific study determine that stress levels rise when people are exposed to air pollutants. Indoors, the most common air pollutants that are linked with increased levels of stress include particulate matter PM2.5, allergens, and volatile organic compounds (VOCs).

PM2.5's effects on stress

PM2.5 is one of the most dangerous air pollutants that pose serious health issues due to their extremely small size, and thus ability to gain access to the respiratory system, heart, brain, and bloodstream.

A recent scientific study demonstrates that exposure to PM2.5 may act as a stressor, causing the body to increase stress levels, which can lead to higher blood pressure, insulin resistance, and signs of oxidative stress and inflammation. 

High levels of stress hormones such as cortisol, which is caused by PM2.5 exposure, can negatively impact sleep quality, leading to shallower sleep, shorter sleep duration, and lower sleep efficiency. Chronic stress, resulting from long-term PM2.5 exposure, may lead to disrupted sleep patterns, sleep disorders and diseases such as sleep apnea and insomnia, further exacerbating stress levels.

Allergens, VOCs and stress

Based on research, exposure to indoor allergens such as dust mites, pollen, mold spores, pet dander, and tobacco smoke can cause allergic reactions, symptoms of which include sneezing, blocked or runny nose, postnasal drip, itchy watery eyes, and sore throat. These allergy symptoms can cause severe discomfort that may cause poor sleep quality and sleep disturbances, which further exacerbates feelings of stress.

Volatile organic compounds (VOCs), chemicals that vaporize at room temperature, can be harmful to your health if emitted and inhaled. VOCs are emitted from a lot of household products such as cleaners, air fresheners, personal care products, cooking oils, paints, solvents, markers, glues, and much more. Research shows that exposure to high levels of VOCs can cause airway inflammation, oxidative stress, headaches, and irritations to the eye, nose, and throat, which contributes to feelings of stress.

How air purifiers can help reduce stress

Using a high-quality air purifier with a medical-grade filtration system can capture all indoor air pollutants including PM2.5, VOCs, and allergens such as dust mites, pollen, mold spores, smoke, pet dander, smelly odors and much more. This not only reduces stress levels by easing the body's air pollution-induced stress response but also improves your sleep quality, immune system, and overall health.

Reduce stress hormones levels

Research has shown that indoor air purification results in a reduction in stress hormones, positively reducing levels of stress in individuals. Moreover, the use of air purifiers with a HEPA (high efficiency particulate air) filter helps effectively reduce airborne PM2.5 levels to protect against adverse health effects of air pollution including oxidative stress, insulin resistance, blood pressure, inflammation, and air pollution-induced stress.

Reduce discomfort from allergy symptoms

High-quality air purifiers with advanced HEPA filtration systems are proven to relieve not only indoor allergy symptoms but also asthma and cardiovascular diseases by reducing concentration of indoor air pollutants including PM2.5 and VOCs. This reduction in the harmful air pollutants relieves symptom discomfort and irritations, further reducing overall stress levels.

Improves sleep quality

By using high-quality air purifiers, unpleasant nighttime allergy symptoms such as nasal congestion, coughing, and asthma are reduced since airborne pollutants and allergens are minimized. As a result, there will be fewer sleep disturbances, and the body can get in a deeper, more high-quality sleep. Moreover, air purifiers can also act as a white noise machine which can reduce the time it takes to fall asleep by almost 40%. In short, better, longer sleep leads to lower stress levels.

Sterra Moon - reducing stress made affordable


Sterra Moon Air Purifier

Designed by air quality experts

Unique medical-grade filtration system

Affordable with powerful specs

Effectively reduces stress levels

Improves sleep, immunity, and health

Singapore's only air purifier with this powerful spec

Being one of the most popular air purifiers in Singapore, the Sterra Moon Air Purifier is used by thousands of Singaporeans and celebrities. It features the latest air purification technology to provide the best air filtration against allergens, bacteria, viruses, and other air pollutants, without the pricey cost.

The Sterra Moon Air Purifier packs cutting-edge technology to provide the best air filtering system but comes at a reasonable price. It is a popular household option because Sterra offers value for money by providing high-quality air purifiers but making them budget-friendly. 

The Sterra Moon uses the Triple Layer Medical Grade True HEPA-13 system - a unique and powerful filtration system with multiple specialized layers that are even used in hospitals to keep the air clean.

Patented pre-filter

Patented filter fabric extends the primary filter's life span of the  by sieving out larger airborne pollutants first such as hair, dust, lint, and fur. 

Activated carbon layer

Extremely porous layer absorbs air contaminants and neutralises odor in the air such as smoke, pet odours, foul smells, cooking smells, etc.

True HEPA-13 filter

Captures up to 99.97% of all indoor air pollutants and allergens down to 0.3 μm in size such as mold spores, pollen, pet dander, dust mites, VOCs, PM2.5, and much more.

UV-C light technology

Destroys airborne mold spores, bacteria, and viruses to reduce levels of airborne allergens and pathogens, ensuring they don't reproduce and get back into the air.

Sterra's unique combination of protection removes 99.97% of indoor air pollutants to provide you with cleaner air, better sleep, reduced stressed levels and improved overall health.

Captures 99.97% of all indoor air pollutants

Dust Mites

Pet Dander




Mold Spores


PM2.5 & PM10


And Others

Smart technologies for daily ease of use

The Sterra Moon Air Purifier comes with a variety of additional smart technologies and features to help you operate it with ease and peace of mind knowing the air in your home is always clean.

Real-time air quality tracking

Measures your air quality in real time and displays different colors on built-in LED indicator ring accordingly to indicate if your air is clean or dirty.

Whisper-quiet operation

Can operate at whisper-quiet noise level of 20dB on low fan speeds to provide white noise to improve your sleep quality, immune system, and overall health.

Mobile app control

Included Sterra mobile application comes packed with plenty of handy and nifty features to make operating the air purifier everyday truly a breeze.

Easy to change & long-lasting filter

Changing the air filter is designed to be easy as changing batteries in a remote control. Unlike other air filters that last for a month, Sterra Moon air filters can last up to 6 months.

Get great results with no risks

Get the Sterra Moon air purifier to safeguard yourself against stress

★★★★★ 772 verified reviews

Sterra Moon™ True HEPA-13 Air Purifier



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Captures 99.97% of harmful air pollutants

Relieves allergy symptoms discomfort

Effectively reduces stress

Improves sleep quality


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You have a full month to test Sterra Moon Air Purifier without any worries with our 30-day Results or Refund Money Back Guarantee. If you don't get the relief you're looking for or if you simply don’t love it, send it back and you’ll receive a full refund with no questions asked.

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Sterra Moon Air Purifier


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Captures 99.97% of harmful air pollutants and allergens

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