加拿大采购需求：Airwoods Eco Pair Plus，单室能量回收通风机，50CMH ERV，30CFM ERV，能量回收通风机，商用通风解决方案

I'm reaching out to check if the products I'm interested in are available for purchase in Canada. I'd like to know about the shipping options, delivery times, and any associated costs for orders going to Canada. Additionally, it would be great if you could provide any details on local regulations or restrictions that might affect the import of these items. I'm looking forward to your prompt response so we can move forward!