Important Safety Instructions
When using electrical appliances, basic precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons. Read all instructions before operating this appliance.
- Always place the air purifier on a firm, level surface.
- Keep the cord away from heated surfaces.
- Do not operate any appliance with a damaged cord or plug.
- Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar coverings. Arrange cord away from traffic area where it will not be tripped over.
- Do not use the air purifier in wet or damp environments.
- Always unplug the air purifier before moving, cleaning, or replacing the filter.
- Do not insert foreign objects into any ventilation or exhaust opening.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Product Overview
The ENVION Therapure TPP640S Air Purifier is designed to improve indoor air quality by effectively removing various airborne contaminants. It features a multi-stage filtration system, including a HEPA-type filter and UV-C light technology.
Key Features:
- HEPA-Type Filter: Captures particles as small as 0.1 microns, including pollen, dust, and pet dander.
- UV-C Light Technology: Reduces airborne viruses and bacteria.
- Automatic Air Quality Detection: Adjusts purification levels based on detected air quality.
- Remote Control: For convenient operation.

Image: The ENVION Therapure TPP640S Air Purifier shown alongside its remote control, highlighting the unit's sleek design and accessible controls.

Image: Visual representation of common airborne contaminants the air purifier helps to reduce, including pollen, smoke, viruses, bacteria, and pet hair.
Setup
Unpacking and Placement:
- Carefully remove the air purifier from its packaging.
- Place the unit on a firm, level surface in the desired room. Ensure there is at least 6 inches (15 cm) of space around all sides of the unit for proper air circulation.
- Avoid placing the unit near heat sources, direct sunlight, or in areas with high humidity.
- Plug the power cord into a standard electrical outlet.

Image: The air purifier positioned in a living room, demonstrating suitable placement for optimal air circulation.
Operating Instructions
The Therapure TPP640S can be operated using the control panel on the unit or the included remote control.
Control Panel and Remote Functions:
- Power Button (U): Press to turn the unit ON or OFF.
- Speed Button: Cycles through fan speeds (Low, Medium, High).
- AUTO Button: Activates automatic mode, where the unit adjusts fan speed based on detected air quality.
- TIME Button: Sets the operating timer for a specified duration (e.g., 2, 4, 8 hours).
- DIM Button: Adjusts the brightness of the display lights.
- UV/VOC Button: Turns the UV-C light and VOC (Volatile Organic Compound) sensor ON or OFF.

Image: The air purifier displaying its air quality indicator, which changes color to reflect 'Good', 'Medium', or 'Bad' air quality, particularly relevant for Auto mode operation.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your air purifier.
Filter Replacement:
- The HEPA-type filter should be replaced approximately every 6-12 months, depending on usage and air quality.
- Refer to the filter replacement indicator on the unit, if available.
- To replace, unplug the unit, open the filter compartment, remove the old filter, and insert a new one. Ensure it is seated correctly.
Cleaning the Unit:
- Always unplug the unit before cleaning.
- Wipe the exterior surfaces with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Gently vacuum the air intake and exhaust grilles to remove dust buildup.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on | No power supply | Check if the power cord is securely plugged into an active outlet. |
| Reduced airflow | Clogged filter | Clean or replace the HEPA-type filter. |
| Unusual noise | Obstruction in fan or improper filter installation | Unplug the unit and check for any obstructions. Ensure the filter is installed correctly. |
| Air quality indicator always shows 'Bad' | High level of pollutants or sensor issue | Ensure the room is well-ventilated initially. Clean the sensor area if accessible. If problem persists, contact customer support. |
Specifications

Image: The air purifier with its height dimensions clearly marked in both inches and centimeters.
| Feature | Detail |
|---|---|
| Brand | Envion |
| Model Number | 50946 |
| Color | Black |
| Product Dimensions (L x W x H) | 24 x 25 x 68 cm |
| Item Weight | 4 Kilograms |
| Sound Level | 62 Decibels |
| Power Source | Corded Electric |
| Control Method | Remote Control |
| Filter Type | HEPA |
| Contaminant Filtration Capacity | Yes |
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Envion website. Keep your proof of purchase for any warranty claims.