Modifiers matching particulate:

• inorganic,
• floating,
• airborne,
• indoor,
• unhealthy,
• chemical,
• ceramic,
• charged,
• hazardous,
• fine,
• secondary,
• suspended,
• atmospheric,
• micro,
• solid,
• unwanted,
• foreign,
• natural,
• pathogenic,
• metal,
• inert,
• dustlike,
• allergenic,
• coarse,
• gross,
• microscopic,
• abrasive,
• tiny,
• small,
• large,
• toxic,
• larger,
• sharp,
• hard,
• silver,
• smaller,
• conductive,
• soft,
• size,
• powdered,
• biological,
• insoluble,
• heavy,
• available,
• diverse,
• nonmetallic,
• supplemental,
• crystalline,
• coated,
• crustal,
• fibrous,
• liquid,
• dry,
• organic,
• ambient,

Simple categories matching insoluble:

• residue,
• material,
• substance,
• solid,
• sediment,
• sugar,
• substrate,
• component,
• object,
• thing,
• salicylate,
• fluoride,
• compound,
• particle,
• metabolite,
• polymer,
• filler,
• drug,
• lipid,
• waste,
• resin,
• solvent,
• spinel,
• matter,
• contaminant,
• carrier,
• macromolecule,
• electrode,
• ester,
• salt,
• chemical,
• mercury,
• molecule,
• polysaccharide,
• fiber,
• pollutant,
• product,
• builder,
• structure,
• metal,
• constituent,
• powder,
• protein,
• nutrient,
• mineral,
• fibre,
• carbohydrate,
• gas,
• medium,
• form,
• acceptor,
• abrasive,
• phosphorus,
• matrix,
• complex,
• cement,
• precipitate,
• sulphide,
• impurity,
• item,
• halide,
• contamination,
• coating,
• surface,
• fertiliser,
• bubble,
• lubricant,
• oxide,
• portion,
• system,
• phosphate,
• aggregate,
• hydroxide,
• solute,
• oligosaccharide,
• liquid,
• alcohol,
• conductor,
• rock,
• fertilizer,
• shell,
• deposit,
• fraction,
• particulate,
• soil,
• scaffold,
• monomer,