1. Introduction
The Holmes HAP706-NU-1 True HEPA Allergen Remover Mini Tower Air Purifier is designed to enhance air quality in small spaces up to 80 square feet. It effectively removes up to 99.97% of airborne particles, including dust, pollens, allergens, smoke, mold spores, and pet dander, ensuring a cleaner and fresher environment. This unit features a space-saving tower design, multiple speed settings, and an optional ionizer for improved air purification.
2. Important Safety Instructions
- Read all instructions before using this appliance.
- Place the air purifier on a firm, level surface.
- Do not operate the unit with a damaged cord or plug.
- Keep the power cord away from heated surfaces.
- Do not use the air purifier in wet or damp environments.
- Always unplug the unit before moving, cleaning, or replacing filters.
- Keep openings free from blockages.
3. Setup and Filter Installation
- Unpacking: Carefully remove the air purifier from its packaging.
- Filter Access: Locate the filter compartment. This model typically has a removable back or side panel.
- Pre-Filter Installation: The unit includes a washable pre-filter. Ensure it is properly seated within its clips on the inside of the removable panel.
- HEPA Filter Installation: Insert the True HEPA filter (HAPF300D) into the main filter slot. Ensure it is securely in place.
- Close Compartment: Reattach the removable panel, ensuring it clicks firmly into place.
- Placement: Place the air purifier on a flat, stable surface, ensuring adequate clearance around air intake and outlet vents for optimal performance.

Image: Holmes HAP706-NU-1 Air Purifier with its True HEPA filters and pre-filter displayed.
4. Operating Instructions
The Holmes HAP706-NU-1 features intuitive controls for easy operation.

Image: Close-up of the top control panel with speed settings and ionizer button.
- Power On/Off: Plug the unit into a 120V AC electrical outlet. Turn the rotary dial to the desired speed setting to power on the unit. Turn to 'OFF' to power off.
- Speed Settings: Select from 3 speed settings (Low, Medium, High) using the rotary dial to adjust air purification intensity.
- Low: For quiet operation and continuous use.
- Medium: For general cleaning and moderate air quality issues.
- High: For rapid air purification and severe air quality concerns.
- Optional Ionizer: Press the "Ionizer" button to activate the optional ionizer feature. The indicator light will illuminate when active. The ionizer helps to bind small particles together, making them easier for the filter to capture.
- Filter Check Indicator: The "Check Filter" and "Check Pre-Filter" indicator lights will illuminate when it's time to inspect or replace the respective filters.
5. Maintenance
Regular maintenance ensures optimal performance and extends the life of your air purifier.

Image: Internal view of the air purifier highlighting the multi-layer filtration system.
- Washable Pre-Filter: The pre-filter should be cleaned every 2-4 weeks, or when the "Check Pre-Filter" light illuminates.
- Remove the back panel and gently detach the pre-filter.
- Wash the pre-filter in warm, soapy water. Rinse thoroughly.
- Allow the pre-filter to air dry completely before reinserting.
- True HEPA Filter Replacement: The True HEPA filter (HAPF300D) should be replaced approximately every 10-12 months, or when the "Check Filter" light illuminates.
- Unplug the unit and remove the back panel.
- Remove the old HEPA filter by pulling on the tabs.
- Insert a new Holmes HAPF300D True HEPA filter, ensuring proper orientation.
- Replace the back panel.
- To reset the filter indicator, press and hold the "Check Filter" button for 3-5 seconds until the light turns off.
- Exterior Cleaning: Wipe the exterior of the air purifier with a soft, damp cloth as needed. Do not use abrasive cleaners or solvents.
6. Troubleshooting
| Problem | Solution |
|---|---|
| Unit does not turn on. | Ensure the power cord is securely plugged into a working outlet. Check the rotary dial is set to a speed setting (not 'OFF'). |
| Reduced airflow or poor purification. | Check and clean the pre-filter. Replace the True HEPA filter if the indicator light is on or if it appears heavily soiled. Ensure no obstructions are blocking air intake/outlet. |
| "Check Filter" or "Check Pre-Filter" light remains on after cleaning/replacement. | Press and hold the corresponding reset button for 3-5 seconds until the light turns off. |
| Unusual noise. | Ensure the unit is on a flat, stable surface. Check for any foreign objects inside the unit or loose filter components. |
7. Specifications
- Model: HAP706-NU-1
- Brand: HOLMES
- Color: White
- Product Dimensions: 11.4"D x 8.2"W x 15.66"H
- Item Weight: 6.96 pounds
- Floor Area Coverage: Up to 80 square feet
- Filter Type: True HEPA (removes 99.97% of airborne particles)
- CADR: 55
- Noise Level: 55 Decibels
- Controller Type: Button Control (Rotary Dial for speed)
- Wattage: 43 watts
- Special Feature: Optional Ionizer
8. Warranty and Support
This Holmes Air Purifier comes with a Limited 5-year warranty. For warranty claims, technical support, or replacement parts, please refer to the contact information provided in your product packaging or visit the official HOLMES website.
For additional information or to purchase replacement filters (Model HAPF300D), please visit the HOLMES Store on Amazon.







