> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sonohealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Room Size and Coverage Guide

> AirPro room coverage: 430 sq ft in 10 minutes, 1,200 sq ft in 30 minutes. Placement tips, 360-degree airflow, and multi-unit recommendations.

The AirPro's 360-degree airflow design processes air from all directions, providing fast and thorough coverage. A single unit handles most rooms, while multi-packs cover entire homes.

## Coverage Performance

| Room Size   | Time to Clean | Example Rooms                          |
| ----------- | ------------- | -------------------------------------- |
| 200 sq ft   | \~5 minutes   | Small bedroom, home office             |
| 430 sq ft   | 10 minutes    | Master bedroom, living room            |
| 800 sq ft   | \~20 minutes  | Large living area, open kitchen/dining |
| 1,200 sq ft | 30 minutes    | Open-concept living space              |

These times represent one complete air change -- the time for the AirPro to process the full volume of air in the room. For continuous purification, the AirPro cycles the air multiple times per hour on its standard setting.

## 360-Degree Airflow Design

Traditional air purifiers draw air from one side and push it out the other. This creates uneven coverage with clean zones near the outlet and stagnant zones elsewhere.

The AirPro's 360-degree intake pulls air from every direction around the unit. Clean air exits upward, creating a natural circulation pattern that reaches all corners of the room without relying on existing room airflow.

This design means placement is more flexible -- you do not need to point the purifier at a specific area or position it against a wall with the intake facing the room.

## Placement Guidelines

### Best Locations

* **Bedroom** -- Place on a nightstand or dresser for clean air while sleeping. Night Mode runs at just 25 dB.
* **Living room** -- Central placement or near seating areas provides the most benefit where you spend time.
* **Home office** -- On or near your desk to keep your immediate breathing zone clean.
* **Kitchen/dining** -- Helps clear cooking odors, smoke, and airborne grease particles.
* **Nursery or children's room** -- Clean air is especially important for developing lungs.

### Placement Tips

* **Elevate the unit** when possible. Placing the purifier 3-5 feet off the ground puts it closer to your breathing zone.
* **Allow clearance** around all sides for unrestricted 360-degree airflow. Avoid tucking it into tight corners or behind furniture.
* **Keep away from walls** by at least 6-12 inches to allow full air intake.
* **Position near pollution sources** when targeting specific issues (e.g., near the kitchen for cooking odors, near pet areas for dander).

## Multi-Unit Recommendations for Larger Homes

For homes larger than 1,200 sq ft or homes with multiple floors, multiple AirPro units provide the best results. Doors, walls, and floor transitions limit airflow between rooms, so a single unit in one room will not effectively clean air in another.

| Home Size                  | Recommended Units | Best Package                                                                                   |
| -------------------------- | ----------------- | ---------------------------------------------------------------------------------------------- |
| Studio / 1-bedroom         | 1 unit            | [1-Pack -- \$169](https://sonohealth.com/products/air-pro-hepa-filter-air-purifier)            |
| 2-3 bedrooms               | 2 units           | [2-Pack -- \$249 (save 43%)](https://sonohealth.com/products/air-pro-hepa-filter-air-purifier) |
| 4+ bedrooms or multi-story | 4 units           | [4-Pack -- \$459 (save 47%)](https://sonohealth.com/products/air-pro-hepa-filter-air-purifier) |

### Priority Rooms for Multiple Units

If you are starting with fewer units than rooms, prioritize placement in this order:

1. **Bedroom** -- You spend 6-8 hours here. Clean air during sleep has the highest health impact.
2. **Living room / main gathering area** -- Where you spend the most waking hours.
3. **Home office** -- Improved air quality supports focus and reduces fatigue.
4. **Kitchen** -- Addresses cooking-related pollutants and odors.
5. **Basement** -- Often has the highest mold and humidity concerns.

## Using the Smart Timer for Coverage

The AirPro's Smart Timer (2, 4, or 6 hours) lets you run the purifier for targeted periods:

* **2-hour timer** -- Quick clean before bedtime or after cooking
* **4-hour timer** -- Cover a sleep cycle or an afternoon work session
* **6-hour timer** -- Extended coverage for overnight or all-day use

For rooms with ongoing air quality concerns (pet areas, kitchens, or rooms with new furniture off-gassing), continuous operation provides the best results.

## Frequently Asked Coverage Questions

**How many air changes per hour (ACH) does the AirPro deliver?**
In a typical bedroom, the AirPro delivers well above the recommended rate. Because it purifies 430 sq ft in about 10 minutes, a 150–200 sq ft room is cycled roughly 5–6 times per hour. Experts generally suggest at least 4–5 ACH for allergy and asthma relief.

**What is the largest room one AirPro can handle?**
One unit is rated for up to 1,200 sq ft, a full air change in 30 minutes. For spaces larger than that, or separate closed rooms and multiple floors, use additional units. See [Best Air Purifier for Large Rooms](/air-purifier/best-air-purifier-for-large-rooms).

**Does an open floor plan count as one big room?**
Yes. An open-concept living, kitchen, and dining area behaves like one large room, so size to the combined square footage and place the unit centrally with clear airflow on all sides.

***

**Related:** [Best Air Purifier for Large Rooms](/air-purifier/best-air-purifier-for-large-rooms) · [CADR vs. ACH Explained](/air-purifier/cadr-vs-ach-explained) · [Product Overview](/air-purifier/overview) · [Smart Features](/air-purifier/smart-features) · [Air Quality Guide](/air-purifier/air-quality-guide)