Introduction
The Medify MA-40 UV Light Air Purifier is designed to provide superior air quality by removing airborne particles and odors from your environment. Featuring a True HEPA H14 filter and optional UV light, this unit is effective in spaces up to 1,793 sq ft, targeting common indoor air pollutants such as wildfire smoke, pet dander, pollen, and odors. Its quiet operation and user-friendly controls make it an ideal solution for homes, offices, and other large rooms.

Image: The Medify MA-40 UV Light Air Purifier, a sleek white unit with a black top panel, designed for effective air purification.
Key Features
- Maximum Coverage: Cleans large spaces up to 1,793 sq ft in one hour, 840 sq ft in 30 minutes (CADR 380).
- Advanced Filtration: Equipped with a True HEPA H14 filter, capturing 99.9% of particles down to 0.1 microns.
- UV Light: Optional UV light setting for an added layer of protection against microorganisms.
- Quiet Operation: Designed for quiet performance, suitable for bedrooms and offices.
- Certified Quality: CARB, ETL, and Energy Star certified.
- Lifetime Warranty: Backed by a USA registered Lifetime Warranty.

Image: An overview of the Medify MA-40 UV Air Purifier, emphasizing its H14 True HEPA Filter, 99.99% particle removal, optional UV Light, and coverage area of 1,793 sq ft in 60 minutes.
Setup
Unpacking and Filter Preparation
- Carefully remove the air purifier from its packaging.
- Locate the filter compartment, typically on the back or side of the unit.
- Open the compartment and remove the filter. The filter comes wrapped in plastic for protection during shipping.
- Important: Remove all plastic packaging from the filter before installation. Operating the unit with the plastic wrap on the filter will prevent proper air circulation and filtration.
- Insert the unwrapped filter back into the compartment, ensuring it is seated correctly.
- Close the filter compartment cover securely.
Placement
- Place the air purifier on a flat, stable surface.
- Ensure there is adequate space around the air intake and outlet vents for optimal airflow. Avoid placing it directly against walls or furniture.
- Plug the power cord into a standard electrical outlet.
Video: This video provides an overview of the Medify Air purifier, including how to unwrap and install the filter before first use. It demonstrates the ease of access to the filter compartment.
Operating Instructions
Control Panel Overview
The Medify MA-40 features a sleek, touch-sensitive control panel located on the top of the unit. All functions are easily accessible with a gentle touch.

Image: A detailed view of the Medify MA-40's control panel, illustrating the touch buttons for power, timer, child lock, fan speed, and ionizer functions.
Functions
- Power Button: Press to turn the unit ON or OFF.
- Speed Settings: Cycle through various fan speeds (Sleep, Low, Medium, High) to adjust airflow and noise level.
- Timer: Set the unit to operate for a specific duration (e.g., 1, 2, 4, or 8 hours) before automatically shutting off.
- Child Lock: Activate this feature to disable the control panel, preventing accidental changes by children or pets. Press and hold the child lock button for 3 seconds to activate/deactivate.
- Ionizer: Turn the ionizer function ON or OFF. The ionizer helps to further purify the air by releasing negative ions.
- UV Light: The UV light function can be toggled on or off to provide an additional layer of air purification.
Video: This video demonstrates the various control panel functions, including power, fan speed adjustments, timer settings, and the child lock feature, showcasing their ease of use.
Maintenance
Filter Replacement
The Medify MA-40 uses a True HEPA H14 filter that lasts approximately 3,000 hours or 4-5 months, depending on usage and air quality. The unit features a filter indicator light that will illuminate when it's time to replace the filter.
- Turn off and unplug the air purifier.
- Locate the filter compartment cover (usually on the back or side) and open it.
- Remove the old filter by pulling on the designated tabs.
- Dispose of the old filter responsibly.
- Unwrap the new replacement filter (Model: B07MTQFFNT) from its plastic packaging.
- Insert the new filter into the compartment, ensuring it fits snugly.
- Close the filter compartment cover.
- Plug in the unit and press the reset button for the filter indicator (refer to your control panel for specific instructions, often a long press on the filter icon).

Image: A genuine replacement filter for the Medify MA-40 air purifier, essential for maintaining optimal performance.
Video: This video demonstrates the process of removing and replacing the air filter in the Medify MA-40, highlighting the simple steps involved.
Troubleshooting
- Unit Not Turning On: Ensure the power cord is securely plugged into a working outlet. Check if the child lock is activated.
- Reduced Airflow: Check if the filter is clogged and needs replacement. Ensure no obstructions are blocking the air intake or outlet vents.
- Unusual Noise: Verify that the filter is correctly installed and the unit is on a stable surface. If the noise persists, contact customer support.
- Odor Persists: Ensure the filter is clean and properly installed. The ionizer function can be used for additional odor reduction.
If you encounter any issues not listed here, please refer to the full user manual or contact Medify Air customer support for assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | MA-40-UV |
| Coverage Area | Up to 1,793 sq ft (1 air change/hr) |
| Filter Type | True HEPA H14 |
| Particle Retention Size | 0.1 microns |
| Noise Level | 46 Decibels |
| Control Method | Touch Button Control |
| Power Source | Plug in (68 watts) |
| Dimensions (D x W x H) | 2.95"D x 2.95"W x 2.95"H |
| Item Weight | 9.44 Pounds |
| Included Components | One Air Purifier and One filter |
Warranty & Support
The Medify MA-40 UV Light Air Purifier is backed by a USA registered Lifetime Warranty, ensuring peace of mind and long-term performance. For any questions, technical support, or warranty claims, please contact Medify Air customer service through their official website or the contact information provided in your product packaging.
You can also visit the Medify Air Store on Amazon for additional product information and support resources.







