Illustration representing fine dust and a protective mask

Air Quality

Managing Air Quality and Fine Dust

When air quality is poor, your airways and eyes are the first to feel it. Even "it's just a quick errand" trips add up over the day. Here's a set of practical habits covering whether to go out at all, mask use, ventilation, and what to do once you get home. During spring dust storms or winter stagnant-air periods especially, unhealthy conditions can stretch on for several days in a row, so it's worth looking at the week's trend rather than judging day by day. The tips below are general lifestyle habits — if you have a respiratory or cardiovascular condition, it's a good idea to talk to your doctor about setting your own personal thresholds.

Updated: August 4, 2026

Reference data · WeatherAPI / editorial lifestyle guide

How to read the air quality scale

Air quality is usually reported as good, moderate, unhealthy, or very unhealthy, and the numbers can shift by time of day and location even within the same day. Once it hits unhealthy, cutting back outdoor exposure is the baseline move, and sensitive groups should stay alert even at the moderate level. Checking both the forecast and real-time readings makes it easier to pick a good window for ventilating your home and for heading outside. PM10 and PM2.5 (fine and ultra-fine particulate matter) differ in particle size and affect the body somewhat differently — PM2.5 can penetrate deeper into the respiratory tract, so it's worth checking both figures rather than just one. Forecasts are usually issued for a broad area, so keep in mind that the real-time reading from your local monitoring station may differ from what you actually feel.

Check air quality for both where you live and where you're headed before leaving
Cut back on outdoor exercise or walks once conditions hit unhealthy or worse
Avoid leaving windows open for long stretches if there's wind or dust blowing in from a particular direction
Readings can change through the day, so check both morning and afternoon separately
Check both PM10 and PM2.5 (fine dust and ultra-fine dust) readings together
Compare your local real-time monitoring station reading against the broader forecast

When conditions are unhealthy or worse

The baseline is to cut down on time outdoors. If you absolutely need to go out, wear a proper protective mask and postpone anything strenuous. Contact lenses tend to dry out your eyes more on these days, so glasses are the better choice. A mask only works if it seals snugly around your nose and chin — if you find yourself short of breath, don't push through it, head indoors instead. If you're out with children or older adults, it's better to move them indoors before yourself, and covering a stroller can also help reduce their exposure. If your job makes it hard to avoid the outdoors entirely, stick to a regular mask-replacement schedule and take breaks indoors to catch your breath when you can.

Cut back on unnecessary outdoor activity and intense exercise
Wear a proper filtering mask (like KF94) sealed snugly around your nose and chin
Swap contacts for glasses and use artificial tears to manage dry eyes
Keep windows closed for longer stretches and minimize time spent outside
Swap high-exertion activities like cycling or jogging for an indoor alternative
Move children and older adults indoors before yourself when air quality is bad
If you work outdoors, follow a regular mask-replacement schedule and take indoor breaks

At home and at the office

Ventilation still matters, but on bad air days it's better done briefly and at the right time. An air purifier helps, and checking the filter regularly keeps it effective. Once you're home, wash your hands and face and shake dust off your outer layer. When cleaning, pairing a damp mop with the vacuum works better than vacuuming alone, since it keeps dust from getting kicked back into the air. An air purifier works best in a smaller, closed-off room rather than a large open space, and it's worth checking the filter a bit more often than the manufacturer's suggested schedule during heavy dust seasons. In a shared space like an office, agreeing on a set ventilation window and using plants or a humidifier to manage humidity can also help settle dust faster.

Run an air purifier and check its filter on a regular schedule
Ventilate briefly, timed to whenever air quality is a bit better
Wash your hands and face when you get home, and shake off or launder your outer layer
Favor damp mopping over aggressive vacuuming to avoid stirring dust back up
Ventilate alongside activities that add indoor pollution, like cooking or smoking
Run an air purifier in a smaller, closed room for better efficiency
Check filters a bit more frequently than usual during heavy dust seasons

Managing fine dust with a mask and an air purifier

A note for sensitive groups

Children, pregnant women, older adults, and people with respiratory or cardiovascular conditions should err on the side of caution. If coughing or tightness in the chest worsens, stop your outdoor activity and consult a doctor if needed. Schools, daycares, and care facilities often have their own criteria for outdoor activity, so parents and guardians should check the day's guidance. If you have asthma or a chronic lung condition, it's safer to watch for symptom changes even before conditions officially reach "unhealthy," and getting into the habit of carrying your inhaler or regular medication when you go out helps you respond quickly if symptoms flare up. Pregnant women should try to adjust their schedule to avoid long stretches of exposure to bad air, shifting walks or errands to a time when air quality is better if possible.

Stop outdoor activity if symptoms appear — coughing, chest tightness, stinging eyes
Consult a clinic or public health center if needed
Check ahead of time whether schools or daycares plan outdoor activities
If you take regular medication, review your prescription and dosage guidance as well
If you have asthma or a chronic lung condition, watch for symptoms even before conditions turn unhealthy
Carry your inhaler or regular medication with you when you go out

Recovery routine after being outside

On bad air days, what you do after coming inside matters as much as what you did outside. Shaking off your outer layer at the entrance, washing your hands, face, and around your nose, and staying hydrated afterward all help reduce irritation. If your throat feels scratchy or your eyes feel gritty, hold off on any additional outdoor trips. A shower that also rinses dust out of your hair and off your skin can reduce irritation overnight, and keeping indoor clothes separate from what you wore outside helps keep dust from spreading through the house. Wiping down your pet's paws and fur after a walk helps with indoor air quality too.

Shake dust off your clothes and bag at the door, then wash your hands right away
Switch from contacts to glasses, or give your eyes a rest
Rehydrate with lukewarm water and avoid dusty, irritating environments
If symptoms persist for more than a day, consider checking with a professional
Shower afterward if you can, to rinse dust out of your hair and off your skin
Wipe down your pet's paws and fur after a walk to limit dust indoors

Choosing and caring for a mask

Protective masks are rated KF80, KF94, KF99, and so on, with higher numbers meaning better filtration of fine particles — but also more resistance when breathing. For everyday errands, a KF80–94 mask is usually enough, and for strenuous outdoor activity, it's worth balancing filtration against how comfortable it is to breathe based on how you're feeling. A mask loses effectiveness once it's wet or misshapen, so it's safer to replace it after a day of use, and kids' masks should be sized to fit their face properly to maintain a good seal. If you have a heart or lung condition, wearing a protective mask can actually make breathing harder, so it's worth talking to a doctor before using one regularly.

Use a KF80–94 mask for everyday errands, and pick based on your comfort for strenuous activity
Replace a mask once it's wet or misshapen, since filtration drops significantly
If you have a heart or lung condition, talk to a doctor before wearing a protective mask regularly

About this guide

This guide summarizes common weather and lifestyle practices for everyday reference. It does not replace official medical or emergency guidance — follow meteorological agencies and local authorities when a warning is in effect.