Infrared Sauna
Effectiveness is low due to sparse RCTs (13 in key review) with small participant numbers (often n<50) and no product-specific trials; benefits like improved cardiac function seen in 2018 meta-analysis (5 studies) but not at proprietary doses. Safety solid with no brand-specific incidents across reviews, though general heat risks noted. Quality poor lacking any named certifications or COA, compounded by brand's operational issues (liquidation). Overall, unverified hardware with moderate general
Found Space Solo lacks verifiable specs or existence in searches; general infrared saunas have moderate evidence from 13 RCTs for CV benefits but limited to small studies. Avoid due to no certifications, transparency issues, and brand instability. Opt for certified models like Sunlighten.