Model | Ascent Max™ | Ascent Opti Basic™ | Ascent Opti™ |
| Product Line | ADC-_B_ | ADC-_C_ | ADC-_D_ | ADC-_E_ | SPB-_A_ | SPD-_A_ | SPD-_B_ |
| VOC Sensor | Optional | Optional | Optional | Optional | × | × | × |
| Secondary HEPA Exhaust Filter | × | × | × | √ | × | × | × |
| Secondary Backup Carbon Filter | × | √ | × | × | × | × | × |
| Control System | Sentinel Silver™ Microprocessor | Sentinel Silver™ Microprocessor | Sentinel Silver™ Microprocessor | Sentinel Silver™ Microprocessor | Rocker Switches | Sentinel Silver™ Microprocessor | Sentinel Silver™ Microprocessor |
Hood Walls
(Side Walls) | Tempered Glass | Tempered Glass | Tempered Glass | Tempered Glass | Acrylic | Acrylic | Acrylic |
Hood Walls
(Rear Wall) | Powder Coated EG Steel | Powder Coated EG Steel | Tempered Glass | Powder Coated EG Steel | Powder Coated EG Steel | Powder Coated | EG Steel Acrylic |
| Auto-Purge™ slots | √ | √ | √ | √ | × | × | × |
| Sloped Front | 3° | 3° | 3° | 3° | 13° | 13° | 13° |
| Sash Type | Vertical Sliding | Vertical Sliding | Vertical Sliding | Vertical Sliding | Hinged | Hinged | Hinged |
| Motorized Sash | Optional | Optional | Optional | Optional | × | × | × |
| Airflow Alarm | √ | √ | √ | √ | × | √ | √ |
| Sound Emission | <61 dBA | <61 dBA | <61 dBA | <61 dBA | <62 dBA | <58 dBA | <58 dBA |
| Certification (ANSI/ASHRAE 110-1995, USA, Exposure Control Technologies, Invent UK) | √ | √ | √ | √ | √* | √* | √* |
| Certification (BS 7989-2001, UK, Invent UK) | √ | √ | √ | √ | × | √ | √ |
| Certification (BS 7258, UK, Invent UK) | √ | √ | √ | √ | × | √ | √ |
| Certification (AFNOR NFX 15-203, France, Invent UK) | √ | √ | √ | √ | × | × | × |
| Certification (EN-14175-3, Europe, Invent UK) | √ | √ | √ | √ | × | × | × |
| Warranty | 5 years | 5 years | 5 years | 5 years | 3 years | 3 years | 3 years |
| Widths Available | 0.6, 0.9, 1.2, 1.5 and 1.8 m (2', 3', 4', 5' and 6') | 0.9, 1.2, 1.5 and 1.8 m (3', 4', 5' and 6') | 0.9, 1.2, 1.5 and 1.8 m (3', 4', 5' and 6') | 0.9, 1.2 and 1.5 m (3', 4' and 5') | 0.6 m (2') | 0.9 and 1.2 m (3' and 4') | 0.9 and 1.2 m (3' and 4') |
| Shipping | Fully-assembled | Fully-assembled | Fully-assembled | Fully-assembled | Unassembled | Unassembled | Unassembled |