Clean Air in Classrooms: How Schools Can Create a Healthier Learning Environment

Clean Air in Classrooms: How Schools Can Create a Healthier Learning Environment

When parents think about their children's education, they usually focus on teachers, classrooms, books and academic performance. But there is another important factor that often receives less attention: the quality of the air students breathe at school.

Children spend several hours every day inside classrooms. If the indoor environment is dusty, poorly ventilated or affected by outdoor pollution, it can make the learning space less comfortable.

This issue is especially important in cities such as Delhi, where air pollution becomes a major concern during certain months of the year.

A recent initiative by a Delhi teenager has also shown how young people can contribute to solving environmental problems. His project, called Project Vayu, developed an affordable filter that can be attached to ordinary fans and used in classrooms.

The idea highlights an important question: Can schools improve indoor air quality without spending a large amount of money?

Why Is Classroom Air Quality Important?

A classroom is more than a place where students sit and study. It is an environment where children read, write, communicate, participate in activities and spend a significant part of their day.

Poor indoor air quality can cause discomfort and may contribute to symptoms such as irritation of the eyes, nose and throat, coughing or breathing difficulties.

Common indoor air pollutants can include:

Dust and fine particles

Smoke entering from outside

Pollution from nearby roads and construction

Mould caused by dampness

Particles released from certain cleaning products

Poorly ventilated indoor spaces

Children with asthma or other respiratory conditions may be particularly sensitive to polluted air.

A clean and well-maintained classroom can help create a more comfortable environment for students and teachers.

A Delhi Teenager's Idea: Turning Ordinary Fans into Air Purifiers

A recent report highlighted Project Vayu, an initiative co-founded by Delhi teenager Krish Aggarwal with Samarth Meattle.

The project developed a low-cost filter that can be fitted onto ordinary ceiling or table fans. Instead of asking schools to purchase expensive standalone air purifiers, the initiative aims to make air filtration more accessible.

The filter uses specially designed material to capture fine particles as air passes through it.

According to the project, each filter costs approximately ₹140 to manufacture. The initiative has supplied filters to schools free of charge and reportedly reached more than 10,000 students.

The project also received recognition through the 2026 Diana Award.

This example demonstrates how students can use creativity, research and collaboration to address problems that affect their communities.

It is important to remember that the reported performance figures are based on project-published testing and should not be treated as a guarantee for every classroom or fan setup.

How Can Schools Improve Indoor Air Quality?

Schools do not always need expensive equipment to begin improving their indoor environment. Several practical steps can make a difference.

1. Maintain Proper Ventilation

Fresh air circulation is important in classrooms. Schools should ensure that windows, doors and ventilation systems are maintained properly.

Where outdoor air quality is poor, schools should follow local pollution advisories and use appropriate ventilation strategies rather than automatically opening windows.

1. Clean Classrooms Regularly

Dust can collect on desks, shelves, fans, floors and other surfaces.

Regular cleaning using suitable methods can help reduce the amount of dust that becomes airborne. Schools should also avoid cleaning practices that create large amounts of dust while students are present.

1. Check Fans and Air Filters

Fans should be cleaned and maintained regularly. If a school uses air filtration devices, the filters should be checked and replaced according to the manufacturer's instructions.

Schools should also make sure that any fan-mounted filter is compatible with the equipment and does not create electrical or mechanical safety risks.

1. Control Dampness and Mould

Water leakage and damp walls can encourage mould growth.

School authorities should repair leaking roofs, pipes and windows. Any visible mould should be addressed appropriately rather than simply covered with paint.

1. Reduce Indoor Smoke and Strong Chemicals

Schools should avoid smoking, burning waste or using strong chemical products inside classrooms.

Cleaning materials should be stored safely and used according to their instructions.

1. Monitor Local Air Quality

During periods of high pollution, school authorities should follow official air-quality advisories and government directions.

Outdoor sports, assemblies and other physical activities may need to be adjusted when pollution levels are high.

What Can Parents Do to Protect Children?

Parents may not control the air quality inside their child's school, but they can take practical steps to support their children's wellbeing.

Check school updates: During high-pollution periods, follow the school's instructions about outdoor activities and classroom arrangements.

Speak to school authorities: If your child repeatedly experiences discomfort in the classroom, discuss the indoor environment with the teacher or school management.

Keep the home environment clean: Regular cleaning and proper ventilation can help reduce indoor dust and other pollutants.

Follow medical advice: Children with asthma or respiratory conditions should follow their healthcare professional's recommendations.

Encourage healthy habits: Teach children to avoid burning waste, unnecessary exposure to smoke and other avoidable pollution sources.

Parents should not rely on home remedies or unverified devices as substitutes for proper medical care.

How Does Air Pollution Affect Students' Learning?

A comfortable classroom helps students focus on their lessons. When children experience coughing, irritation or breathing discomfort, it can become difficult for them to participate fully in school activities.

Air pollution is also an important public health concern. The effects can vary depending on the type of pollutant, exposure level, duration and individual health.

Schools should therefore consider indoor air quality as part of their broader student safety and wellbeing plans.

Clean surroundings, proper maintenance and appropriate pollution precautions can support a better learning environment.

Can Students Contribute to a Cleaner School Environment?

Yes. Students can take part in simple activities that promote environmental awareness.

Schools can organise:

Classroom cleanliness drives

Science projects on air pollution

Poster-making competitions

Discussions about pollution sources

Tree-care and environmental awareness activities

Projects exploring affordable environmental solutions

Students can also learn how air quality is measured and why different pollutants require different control methods.

Such activities connect classroom science with real-life problems and encourage children to become responsible citizens.

Why Affordable Innovation Matters for Schools

Many schools, especially those with limited budgets, may not be able to install advanced air-cleaning systems in every classroom.

This is where affordable innovation becomes important.

Projects like Project Vayu encourage students, educators and communities to think about solutions that are practical, accessible and suitable for local needs.

However, low cost alone should not determine whether a device is adopted. Schools should check its tested performance, safety, maintenance requirements and suitability for the classroom.

A solution should be evaluated properly before being used as a substitute for established air-quality measures.

Frequently Asked Questions (FAQs)

1. Why is clean air important in classrooms?

Students spend several hours at school every day. Better indoor air quality can help reduce exposure to dust and certain airborne pollutants, creating a more comfortable learning environment.

1. What causes poor indoor air quality in schools?

Common causes include dust, outdoor pollution entering through openings, poor ventilation, dampness, mould and certain indoor cleaning products.

1. How can schools improve classroom air quality?

Schools can maintain ventilation systems, clean classrooms regularly, repair damp areas, reduce indoor smoke and use suitable air filtration where appropriate.

1. What is Project Vayu?

Project Vayu is a student-led initiative that developed an affordable filter designed to attach to ordinary fans and help capture fine particles from circulating air.

1. Can ordinary fans remove air pollution?

A standard fan mainly circulates air; it does not automatically remove pollutants. A properly designed and tested filtration attachment may capture some particles, depending on its performance and the conditions in which it is used.

1. Should children with asthma take extra precautions?

Children with asthma or other respiratory conditions may be more sensitive to air pollution. Parents should follow their healthcare professional's advice and school-specific safety arrangements.

Final Thoughts

A good education environment depends on more than books, classrooms and teaching methods. The quality of the surroundings also matters.

Schools can begin with simple steps such as regular cleaning, proper maintenance, suitable ventilation and awareness among students.

The story of Project Vayu is a useful reminder that young people can contribute meaningful ideas to real-world problems. With the right guidance, schools can become places where students not only learn about environmental challenges but also explore ways to solve them.

Clean air should be considered an important part of creating a safer and more comfortable learning environment for every child.