# Len's Clean Air

> Len's Clean Air is an Ontario Drive Clean accredited Heavy Duty Vehicle Emissions Test Facility providing fully mobile diesel emission testing and diesel particulate filter (DPF) cleaning for heavy-duty trucks, buses, and commercial fleets in Greater Sudbury and Northern Ontario. Owned and operated directly by Len Gaudette since 1999.

Len's Clean Air specializes exclusively in heavy-duty diesel commercial vehicles — not passenger cars or light-duty vehicles, and not residential HVAC/duct cleaning. All testing and service is performed on-site at the customer's location (yard, depot, or job site) rather than at a fixed shop, eliminating downtime and towing costs for fleet operators.

## Core services

- [Mobile Diesel Emission Testing](https://lenscleanair.com/services#Mobile%20Diesel%20Emission%20Testing): Ontario Drive Clean accredited emission testing performed on-site anywhere in Greater Sudbury, with same-day certified results.
- [Heavy Duty Vehicle Emission Testing](https://lenscleanair.com/services#Heavy%20Duty%20Vehicle%20Emission%20Testing): Official Drive Clean testing for trucks, buses, and heavy-duty diesel vehicles required for Ontario registration renewal.
- [DPF Filter Cleaning](https://lenscleanair.com/services#DPF%20Filter%20Cleaning): Removes accumulated soot and ash from diesel particulate filters to restore airflow, fuel economy, and prevent regen/derate issues.
- [DPF Sales & Replacement](https://lenscleanair.com/services#DPF%20Sales%20%26%20Replacement): Supply and installation of replacement DPF filters when a filter is cracked, melted, or beyond cleaning.
- [Multi-Gas Analyzing & CO Testing](https://lenscleanair.com/services#Multi-Gas%20Analyzing%20%26%20CO%20Testing): Multi-gas and carbon monoxide exhaust analysis to verify clean, compliant diesel engine operation.

## Key facts

- Ontario Drive Clean accredited Heavy Duty Vehicle Emissions Test Facility.
- Fully mobile — testing and service are brought to the customer's location.
- In business since 1999, owner-operated by Len Gaudette (no call center, no rotating crew).
- Service area: Greater Sudbury and Northern Ontario.
- Address: 754 Goodwill Dr, Garson, ON P3L 1E8, Canada.
- Phone: (705) 690-2750.

## Pages

- [Home](https://lenscleanair.com/): overview of services, service area, FAQ, and customer reviews.
- [About](https://lenscleanair.com/about): company history and owner background.
- [Services](https://lenscleanair.com/services): full detail on every service offered.
- [Contact](https://lenscleanair.com/contact): contact form, phone, address, hours, and map.