diff --git a/buildscript/main.rs b/buildscript/main.rs
index 7278490..579cb84 100644
--- a/buildscript/main.rs
+++ b/buildscript/main.rs
@@ -31,6 +31,7 @@ fn write_wholeunit_main(mut file: &File, units: &Vec<Value>) {
 
 	writeln!(file, "}}\n").unwrap();
 
+	// ToString
 	writeln!(file,
 		concat!(
 			"impl ToString for WholeUnit {{\n",
@@ -47,7 +48,30 @@ fn write_wholeunit_main(mut file: &File, units: &Vec<Value>) {
 		).unwrap();
 	}
 
-	writeln!(file, "\t\t}})\n\t}}\n}}").unwrap();
+	writeln!(file, "\t\t}})\n\t}}\n}}\n").unwrap();
+
+
+	// Properties
+	writeln!(file,
+		concat!(
+			"impl WholeUnit {{\n",
+			"\tfn no_space(&self) -> bool {{\n",
+			"\t\tmatch self {{"
+		)
+	).unwrap();
+
+	for u in units {
+		if u.as_table().unwrap().contains_key("no_space") {
+			if u.as_table().unwrap()["no_space"].as_bool().unwrap() {
+				writeln!(file,
+					"\t\t\tWholeUnit::{} => true,",
+					u["enum_name"].as_str().unwrap()
+				).unwrap();
+			}
+		}
+	}
+
+	writeln!(file, "\t\t\t_ => false\n\t\t}}\n\t}}\n}}").unwrap();
 }
 
 
@@ -223,9 +247,6 @@ fn write_freeunit_from_string(mut file: &File, units: &Vec<Value>) {
 
 
 
-
-
-
 fn main() -> Result<(), ()>{
 
 	let out_dir = env::var_os("OUT_DIR").unwrap();
diff --git a/src/parser/token/operator.rs b/src/parser/token/operator.rs
index bfbcbe3..e55acd0 100644
--- a/src/parser/token/operator.rs
+++ b/src/parser/token/operator.rs
@@ -318,10 +318,18 @@ impl Operator {
 				};
 
 				if no_times {
-					return format!("{} {}",
-						self.add_parens_to_arg_strict(a),
-						self.add_parens_to_arg_strict(b)
-					);
+					let Token::Quantity(u) = b else {panic!()};
+					if u.unit.no_space() {
+						return format!("{}{}",
+							self.add_parens_to_arg_strict(a),
+							self.add_parens_to_arg_strict(b)
+						);
+					} else {
+						return format!("{} {}",
+							self.add_parens_to_arg_strict(a),
+							self.add_parens_to_arg_strict(b)
+						);
+					}
 				} else {
 					return format!("{} × {}",
 						self.add_parens_to_arg_strict(a),
diff --git a/src/quantity/quantity.rs b/src/quantity/quantity.rs
index 147ec68..b31dc3f 100644
--- a/src/quantity/quantity.rs
+++ b/src/quantity/quantity.rs
@@ -29,7 +29,11 @@ impl ToString for Quantity {
 		let u = self.unit.to_string();
 		if self.is_one() { return u; };
 
-		return format!("{n} {u}");
+		if self.unit.no_space() {
+			return format!("{n}{u}");
+		} else {
+			return format!("{n} {u}");
+		}
 	}
 }
 
@@ -39,7 +43,11 @@ impl Quantity {
 		if self.unitless() { return n; }
 
 		let u = self.unit.to_string();
-		return format!("{n} {u}");
+		if self.unit.no_space() {
+			return format!("{n}{u}");
+		} else {
+			return format!("{n} {u}");
+		}
 	}
 
 	pub fn new_float(f: f64) -> Option<Quantity> {
diff --git a/src/quantity/unit/unit.rs b/src/quantity/unit/unit.rs
index 3a0e7e0..0bc77b9 100644
--- a/src/quantity/unit/unit.rs
+++ b/src/quantity/unit/unit.rs
@@ -86,6 +86,12 @@ impl Unit {
 	pub fn get_val_mut(&mut self) -> &mut HashMap<FreeUnit, Scalar> { &mut self.val }
 	pub fn unitless(&self) -> bool { self.get_val().len() == 0 }
 
+	pub fn no_space(&self) -> bool {
+		if self.get_val().len() == 1 {
+			return self.get_val().keys().next().unwrap().whole.no_space();
+		} else { return false; }
+	}
+
 	pub fn from_array(a: &[(FreeUnit, Scalar)]) -> Unit {
 		let mut n = Unit::new();
 		for (u, p) in a.iter() {