The #1 complaint people with indoor allergies have is constant unpleasant symptoms

Below are the most common indoor allergy symptoms:


Blocked or stuffy nose

Runny nose

Postnasal drip

Red, itchy, watery eyes

Sore or scratchy throat

Indoor allergy is also known as hay fever (seasonal) or perennial fever (year-round).

It is an allergic response where the immune system reacts to an allergen as if it were harmful, causing inflammation on the inside layer of your nose.

This makes your nose become swollen and produce excessive levels of mucus along with other allergic symptoms.

The problem is not you, it is the allergens

When your body displays the indoor allergy symptoms mentioned, it is really trying to get rid of harmful airborne pollutants and allergens present in the air that you are exposed to.

So, to successfully combat indoor allergy symptoms, you need to get down to the root cause - the allergens. Below are the most common ones often hidden within your home:

Dust Mites

Mold Spores



Pet Dander

Skin Flakes


PM2.5 & PM10



Your body is affected trying to protect you

Learn how your body becomes negatively affected while protecting you from these hidden harmful allergens

Sneezing & runny nose

When exposed to allergens, your body will try its best to clear these harmful particles from the nasal passages by means of sneezing. Also, as part of the body's defense mechanism, the immune system will release chemicals like histamines to fight against these threats, which can produce excess amounts of mucus, leading to runny nose.

Blocked & stuffy nose

The release of defending chemicals such as histamines and excess mucus production to prevent allergens from entering deeper into the respiratory system can also cause inflammation and swelling of the nasal tissues, which in turn narrows the nasal passages and obstructs normal air flow, resulting in blocked & stuffy nose.

Poor sleep quality

Coping with such symptoms can increase your body temperature at night, which disrupts your circadian rhythm, leading to shallower sleep. Also, nasal congestion from a blocked nose, and postnasal drip from excess mucus flowing down the throat, can make it very hard to breathe, causing constant disruptions during your sleep.

What are long term effects of indoor allergies?

It’s not just what you are feeling right now; it’s how your life will look like long term

Constant restlessness

Disrupted sleeps prevent your body from fully recovering, which results in a weakened immune system over time.

Reduced productivity

Lack of restful sleep and more time managing the symptoms means you can become less productive with daily tasks.  

Increased side effects

Over-the-counter medications will bring more negative side effects to your health with prolonged usage.


The fatigue and discomfort dealing with symptoms can cause feelings of nervousness, inadequacy, isolation.

Now it's possible to combat persistent allergy symptoms with Sterra Moon Air Purifier

The Sterra Moon does more than just capture harmful airborne allergens that trigger allergy symptoms. It is also proven to improve sleep, immune system, well being without side effects that medication brings.


Sterra Moon Air Purifier

Designed by air quality experts

Unique medical-grade filtration system

Affordable with powerful specs

Improves your sleep, skin, and health

Best air purifier that offers most value

Sterra Moon is designed and rigorously tested to effectively combat indoor allergy symptoms

The Sterra Moon's exclusive filtration system can remove up to 99.97% of all harmful allergens in your home.

Dust Mites

Pet Dander




Mold Spores


PM2.5 & PM10


And Others

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, healthier skin, better sleep, and improved overall health.

Proven to work by multiple studies

Here are some studies that show an air purifier with advanced filtration systems like the Sterra Moon can significantly improve indoor air quality and provide relief for all indoor allergy symptoms:

Feel like "You" again with just one touch

Meet Sterra Moon - the air purifier that helps over 50,000+ customers worldwide improve their lives by being free of indoor allergy symptoms. With different layers of filtration, each designed with a specific purpose, it enables anyone to have a better shot at combating indoor allergy symptoms.

Smart technologies for daily ease of use

Sterra Moon 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 beneficial white noise for your bedroom and improve your sleep quality.

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.

Feel the difference after just 7 days!

The Sterra Moon is designed by air quality experts and rigorously lab tested to minimize indoor allergy triggers and bring a radical improvement to your air quality, which you can strongly feel after just one day.

No more sneezing & runny nose

With all airborne allergens minimized by the Sterra Moon Air Purifier, there are no harmful irritants that your body is exposed to and needs to clear from the nasal passages, resulting in you no longer sneezing or having runny nose.

No more blocked & stuffy nose

A dramatic decrease in harmful triggers means your body no longer needs to release chemicals like histamines and excess mucus, which reduces swelling of nasal tissues, and clears your nose from being blocked or stuffy.

Improved sleep quality

Not having to cope with symptoms like nasal congestion and postnasal drip means your body can cool down at night and breathe deep more easily, which places you in better circadian rhythm and deeper high quality sleep.

Massive impact proven by studies

Studies conducted at numerous universities including University of California show that an advance air purification system like Sterra Moon can provide positive effects such as:

Reduces by 75%

all allergy symptoms such as sneezing, blocked nose, runny nose, and postnasal drip

Improves by 60%

your overall sleep quality by helping you stay longer in deep sleep and REM sleep stages

Boosts by 40%

your energy levels by minimizing exposure to allergens allowing your body to rest and recover

Improves by 80%

the air quality in your home by capturing and neutralizing all harmful particles and allergens

Sterra Moon also works for all kinds of severe allergies and respiratory conditions, helping you to...

Improve immune system

It captures all allergens to minimize allergy triggers, allowing you to take a rest and your immune system to rejuvenate itself.

Improve sleep quality

It operates at a "soft-whisper" during the night to provide you with cool, fresh, and clean air, which helps induce deeper sleep.

Improve productivity

With proper recovery enabled by a clean and allergen-free breathing environment, you are fully ready to tackle any tasks.

Improve self confidence

Having great symptoms relief and good restful sleep allows you to look and feel better, helping you regain your self confidence.

Start your day full of energy

You can wake up feeling rejuvenated, filled with positivity, and ready to start the day full of energy, enthusiasm and drive.

Try Sterra Moon today

Best quality

Beloved brand

Thoroughly tested

Zero risk

Free Shipping within Singapore

Get great results with no risks

Get the Sterra Moon air purifier to be free of all your indoor allergy symptoms with no risks.

★★★★★ 759 verified reviews

Sterra Moon™ True HEPA-13 Air Purifier



Remove all harmful airborne allergens and relief all allergy symptoms with our special promo offer. No risks. Money-back guarantee!


Removes 99.97% of all harmful air pollutants

Kills bacteria & viruses with UVC tech

Improves sleep, immunity, and energy levels

Provides relief from indoor allergy symptoms


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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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Over 95% of our customers felt free from allergies...

Don't take our word for it... Check out the Sterra Moon Air Purifier. You'll see hundreds of customers who were suffering from chronic allergy symptoms... Yet, finally, they tried Sterra and never looked back.

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