"How do I find out which manufactures in the US sell the most Oxygen Concentrators?"

To find out which manufacturers in the US sell the most oxygen concentrators, you can follow these steps:

1. Research industry reports: Look for market research reports or studies that focus on the medical device industry or specifically on oxygen concentrators. These reports often provide information about the top manufacturers and their market shares.

2. Check industry associations: Visit the websites or contact relevant industry associations such as the Medical Device Manufacturers Association (MDMA) or the Healthcare Distribution Alliance (HDA). These organizations may have information or resources that can help you identify the leading manufacturers in the US.

3. Consult business directories: Access business directories such as Thomasnet, Kompass, or Manta. These platforms categorize manufacturers by industry and location, making it easier for you to identify the leading oxygen concentrator manufacturers in the US.

4. Use online marketplaces: Browse popular online marketplaces like Amazon, eBay, or Alibaba. Filter your search by location (United States) and product category (oxygen concentrators). Pay attention to the sellers with the most listings or best reviews, as they may represent the major manufacturers in the industry.

5. Explore manufacturer websites: Visit the websites of known medical equipment manufacturers such as Philips Respironics, Invacare, or Inogen. These companies are known to produce oxygen concentrators. Check their product catalogs, customer testimonials, or news sections to gather information about their market presence and popularity.

By combining information from industry reports, associations, directories, online marketplaces, and manufacturer websites, you should be able to identify the US manufacturers that sell the most oxygen concentrators.