Embarking on a home renovation can create unavoidable mess, primarily due to activities like sanding, grinding, and demolishing. This process generates dust that can easily spread throughout your home.

Once airborne, this dust can compromise your air quality and pose health risks. To help mitigate these issues during your renovation, implementing a few strategies to keep your indoor air clean is essential.

In addition to utilizing high-quality air purifiers, there are several methods to safeguard your air quality during extensive home projects. Let's explore our step-by-step guide.

Steps for Maintaining Clean Indoor Air During a Renovation

We consulted with experts in air quality and home renovations to gather effective strategies for preserving indoor air cleanliness throughout the renovation process.

kitchen renovation rules, sky blue and white kitchen with crittall doors to the garden, kitchen island, sink in island, vintage rug

(Image credit: Neptune)

1. Switch Off Your HVAC System

Start by turning off your HVAC system. Many assume their HVAC can filter out dust, but keeping it running can lead to damage.

"Turning off the HVAC when possible prevents dust buildup within the system, which can cause damage and encourage microbial growth," explains Michael Rubino, an air quality specialist and founder of HomeCleanse.

If you must keep the HVAC on, use the highest-rated MERV filters compatible with your system and change them regularly. Once clogged with dust, filters lose effectiveness in trapping particles.

For high-quality MERV filters, check out Home Depot.

2. Create Containment Areas

Since renovations often take place near living spaces, it's vital to separate the work area from the clean areas. Dust and debris can be harmful if they infiltrate your home's pristine zones.

Josh Rudin, owner of ASAP Restorations, emphasizes that containment is crucial for successful renovations, as it concentrates dust in one area.

This can be as simple as installing plastic barriers around the work zone to prevent dust from spreading. Alternatively, Josh suggests setting up multi-staged containment areas for various purposes.

"The first containment should encompass the entire work area. The second containment will separate the work area from the prep area, where technicians or you can wear PPE," he explains.

This approach keeps the mess contained while providing a buffer zone that prevents contaminated air from reaching cleaner parts of your home.

3. Maintain Cleanliness

kitchen renovation rules, blue and grey kitchen with grey tiled backsplash, glazed wall cabinetry with wood finish, blue base cabinets, pale grey marble style countertops, hardwood floor, kitchen island with oven

(Image credit: Bethany Adams Interiors / J.L Jordan)

While it may seem like a low priority during a messy renovation, regular cleaning is essential for maintaining indoor air quality.

"Cleaning the tools, equipment, and individuals involved in the renovation is vital for protecting the rest of your home from dust contamination," Josh notes.

To effectively clean, invest in a HEPA vacuum. These vacuums can trap finer dust particles that standard vacuums often miss, making them indispensable during renovations.

"Opt for HEPA vacuums instead of shop vacs, as they prevent fine dust from recirculating into the air," Michael advises. Additionally, he warns against sweeping, which can aerosolize dust particles, increasing the likelihood of inhalation.

Our guide to the best vacuum cleaners features a solid selection of HEPA vacuums.

Beyond vacuuming, Josh highlights the importance of cleaning tasks such as: "wiping down garbage bags that contain demolition debris, double-bagging them with gooseneck ties, cleaning the secondary bag, and transporting the cleaned bags out of the containment area." This prevents dust from re-entering your indoor air.

4. Ensure Proper Ventilation

While containment is important, proper ventilation also plays a crucial role, provided it's done carefully. Dust accumulation can foster bacteria and mold growth, so maintaining good ventilation is beneficial during renovations.

"Ventilate the area when outdoor air quality is good, and humidity levels are below 50%. This helps eliminate particles while minimizing the risk of worsening indoor air quality," advises Michael.

onservatory with dark grey frames, grey marbled floor and lush foliaged plants. Renovation of a Victorian terraced house in North West London, by interior designers Federica Gosio and Arianna Crosetta, home of Milly O'Sullivan.

(Image credit: James Merrell)

5. Use Air Purifiers

Finally, let's discuss the importance of actively keeping the air clean. Many professional renovators utilize air scrubbers (available at Home Depot), though they can be costly for temporary use.

An air purifier is a more practical solution for filtering out dust and harmful particles. Running an air purifier during work captures airborne debris, helping to maintain healthier air quality.

However, selecting the right air purifier is crucial. Many models are designed for general home use, targeting allergens like pollen or smoke, so you'll want a robust model that can handle the demands of renovation. Molekule's air purifiers operate differently by destroying particles upon capture, making them an excellent choice for heavy-duty tasks like renovations.

Molekule Air Purifier

The Molekule Air Pro purifier employs patented PECO technology to capture and eliminate pollutants, including allergens, bacteria, and viruses, in any indoor environment. Plus, its quiet mode ensures it won't contribute to noise during your renovation.