** CleanSpace Holdings falls as much as 18.4% to A$0.400, their biggest intraday pct drop since July 25

** Respiratory equipment maker reports nearly flat Q1 rev of A$5.3 mln ($3.4 mln) vs a year ago

** Says despite YTD profitability increasing 20%, EBITDA still reflects small loss

** Adds Olympics and Paralympics in France, its largest market, and transitional changes in the U.S. team led to slower-than-feared growth

** Stock hits its lowest since late August

** Over 73,000 shares traded, 3.6x the 30-day avg

** CSX up 21% YTD

($1 = A$1.5168)

(Reporting by Kumar Tanishk in Bengaluru)

((Tanishk.Kumar@thomsonreuters.com;))