I required an air sampling test for formaldehyde to be done for my house. LEAN came highly recommended. I contacted Lilja, the owner, who arranged for the tests to be done right away. Her quote was reasonable. Lilja's site visit and testing process were very thorough. She described the process she would undertake in detail as well as Health Canada guidelines and limits. She answered any questions I had in a clear and thoughtful way. I received her report the following day. It was a very professional document that met all my requirements. Lilja was great to work with and I would certainly use her again.
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