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Eureka Forbes Aeroguard 355: High-Efficiency 220 CADR HEPA + Activated Carbon for 250 Sq.Ft.
The Eureka Forbes Aeroguard 355 delivers a verified Clean Air Delivery Rate (CADR) of 220 m³/hr, optimized for rooms up to 250 sq.ft. Its 4-stage filtration system utilizes a high-density HEPA filter designed to trap 99% of particulate matter as small as 0.3 microns. Operating within a strictly defined noise range of 32-48 dB, this unit balances mechanical acoustic performance with industrial-grade air purification. The device integrates a specialized Anti-bacterial filter into its 4-stage sequence to ensure a 220 m³/hr throughput of sanitized air.
Quick Answer
The Eureka Forbes Aeroguard 355 is recommended for small to medium rooms up to 250 sq.ft. that require high-efficiency 4-stage filtration (HEPA + Carbon) but do not necessitate smart sensors or app-based automation, providing a consistent 220 m³/hr CADR.
✓220 m³/hr CADR for efficient 250 sq.ft. air exchange.
✓99% HEPA filtration efficiency for 0.3-micron particulate matter.
✓4-stage specialized filtration: Pre, HEPA, Carbon, and Anti-bacterial.
✓Whisper-quiet 32 dB operation on low setting; 48 dB at maximum 220 CADR.
✓Front-inlet airflow design for flexible wall-adjacent placement in 250 sq.ft. zones.
The Aeroguard 355 is a mechanical workhorse for 250 sq.ft. spaces, offering a 220 m³/hr CADR and 99% HEPA efficiency without the markup of smart features.
✓ Who Should Buy
- •Users looking for 4-stage filtration for a 250 sq.ft. bedroom.
- •Individuals prioritizing 99% particle removal over smart app features.
- •Budget-conscious buyers needing a reliable 220 m³/hr CADR unit.
✕ Who Should Avoid
- •Users requiring real-time AQI monitoring or PM2.5 digital readouts.
- •Individuals seeking smart home integration or app control.
- •Large hall owners requiring more than 250 sq.ft. coverage.
Product Overview
The Eureka Forbes Aeroguard 355 is a purpose-built air purification system engineered for localized indoor environments of 250 sq.ft. At the core of its performance is a CADR of 220 m³/hr, facilitated by a robust 4-stage filtration architecture. This architecture includes a dedicated HEPA filter which achieves 99% efficiency in capturing airborne particles as small as 0.3 microns, including dust, pollen, and smoke. The 4-stage process is further bolstered by an Activated Carbon filter for gaseous pollutant removal and an Anti-bacterial layer for biological neutralizing. Designed with a front-inlet build, the Aeroguard 355 manages noise levels between 32 and 48 dB, allowing for operation in noise-sensitive areas like bedrooms or small offices. While the unit lacks modern PM2.5 sensors or real-time AQI displays, its mechanical reliability is centered on providing a consistent 220 m³/hr throughput. This model is specifically suited for users prioritizing a 250 sq.ft. coverage area and a 99% filtration rate without the complexity of app-based or automated smart controls.
| Brand | eureka-forbes |
| Model Name | Aeroguard 355 |
| Model Number | 355 |
| Category | Air Purifier |
| Sub Category | Room Air Purifier |
| Purifier Type | HEPA + Activated Carbon |
| Installation Type | Wall Mount / Table Top |
| Coverage Area Sqft | 250 |
| Room Size | Small-Medium |
| Usage | Home |
| Launch Year | 2019 |
| Model Year | 2019 |
| Country Of Origin | India |
| Manufacturer | Eureka Forbes Ltd. |
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Engineering Analysis
The Aeroguard 355 employs a linear airflow path driven by its front inlet configuration, designed to maximize the contact time between ambient air and its 4-stage filtration stack. With a rated CADR of 220 m³/hr, the internal motor-fan assembly is tuned to cycle air in a 250 sq.ft. space approximately five times per hour. The absence of an automated PM2.5 sensor necessitates a manual operational logic where the user selects fan speeds to manage the 32-48 dB acoustic profile based on the localized dust load. From a fluid dynamics perspective, the 99% efficiency of the HEPA filter at 0.3 microns creates a significant static pressure drop, which the Aeroguard 355 overcomes through a high-torque motor optimized for consistent 220 m³/hr output. The 4-stage sequence—comprising Pre-filter, HEPA, Activated Carbon, and Anti-bacterial—ensures that larger debris are sequestered before reaching the high-density HEPA media, preserving the 99% filtration efficacy over longer maintenance intervals. The Activated Carbon layer is specifically calibrated for VOC adsorption within the 4-stage stack to treat 250 sq.ft. environments, while the Anti-bacterial filter provides a final safeguard against microbial growth. Without app-based modulation or real-time AQI feedback, the 220 CADR remains a fixed performance metric that requires manual intervention to adjust between its 32 dB low-power state and its 48 dB maximum performance ceiling. This 4-stage system is technically robust for 250 sq.ft. areas where manual control is preferred over sensor-driven automation.
Technical Support & FAQs
Engineering Analysis
The Aeroguard 355 employs a linear airflow path driven by its front inlet configuration, designed to maximize the contact time between ambient air and its 4-stage filtration stack. With a rated CADR of 220 m³/hr, the internal motor-fan assembly is tuned to cycle air in a 250 sq.ft. space approximately five times per hour. The absence of an automated PM2.5 sensor necessitates a manual operational logic where the user selects fan speeds to manage the 32-48 dB acoustic profile based on the localized dust load. From a fluid dynamics perspective, the 99% efficiency of the HEPA filter at 0.3 microns creates a significant static pressure drop, which the Aeroguard 355 overcomes through a high-torque motor optimized for consistent 220 m³/hr output. The 4-stage sequence—comprising Pre-filter, HEPA, Activated Carbon, and Anti-bacterial—ensures that larger debris are sequestered before reaching the high-density HEPA media, preserving the 99% filtration efficacy over longer maintenance intervals. The Activated Carbon layer is specifically calibrated for VOC adsorption within the 4-stage stack to treat 250 sq.ft. environments, while the Anti-bacterial filter provides a final safeguard against microbial growth. Without app-based modulation or real-time AQI feedback, the 220 CADR remains a fixed performance metric that requires manual intervention to adjust between its 32 dB low-power state and its 48 dB maximum performance ceiling. This 4-stage system is technically robust for 250 sq.ft. areas where manual control is preferred over sensor-driven automation.